SILICON CHIP PROJECTS & CIRCUITS PUBLISHED NOVEMBER 1987 TO NOVEMBER 2024
PCB PREFIX NUMBERS AND SUBJECT HEADINGS
01 AUDIO/HI-FI/HOME THEATRE
02 TV/VIDEO
03 SECURITY, BURGLAR ALARMS, SAFETY, ETC
04 TEST & MEASUREMENT
05 AUTOMOTIVE
06 RADIO COMMUNICATIONS
07 COMPUTERS
08 GAMES AND TOYS
09 MODEL RAILWAY/RADIO CONTROL
10 MAINS POWER CONTROL
11 BATTERY POWER, INVERTERS, FENCES, UPS, MOTOR SPEED
12 TELEPHONES/FACSIMILE
13 PHOTOGRAPHY/ASTRONOMY
14 BATTERY CHARGERS
15 REMOTE CONTROL
16 LASERS & LIGHTING
17 SOLAR ENERGY, WIND POWER AND RENEWABLES
18 POWER SUPPLIES AND REGULATORS
19 TIMERS, COUNTERS, SEQUENCERS AND CLOCKS
20 BOATING/NAUTICAL
21 WEATHER/CLIMATE/TEMPERATURE/HUMIDITY/ETC
22 ROBOTICS
23 MUSIC & MUSICAL INSTRUMENTS
24 MICROCONTROLLER ACCESSORIES & COMPUTER PERIPHERALS
25 MEDICAL AND HEALTH/HUMAN AND ANIMAL
26 SCIENTIFIC/EDUCATIONAL
27 LOGGING/SENSING/REMOTE MONITORING
28 3D PRINTING/CNC
29 SOLDERING/TOOLS
30 AERONAUTICS/AIRCRAFT/SATELLITES/SPACE
99 MISCELLANEOUS
** CIRCUIT NOTEBOOK
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01 AUDIO/HI-FI/HOME THEATRE
Car Stereo For Your Home SC 011-1287 November 1987
Greg Swain; See also Ask SC February 1988
100W Amplifier Module to Build SC 11-1287 December 1987
Leo Simpson & Bob Flynn
See also Ask SC Feb 88 and Kit Clinic Dec 88
Studio 200 Stereo Power Amplifier SC 111287 February 1988
Leo Simpson & Bob Flynn; Notes/errata: January 1990
Endless Loop Tape Player SC11488 March 1988
Greg Swain
Old-Time Crystal Radio March 1988
John Hill
Headphone Amplifier for CD Players SC 1-1-488 April 1988
John Clarke
Studio 200 Stereo Control Unit 01106881/2 & 04106881 June 1988
Leo Simpson & Bob Flynn
Notes/errata: August; October 1988, September 1989, November 1990
Booster for TV & FM Signals OE12 & SC 0210788 July 1988
Branco Justic
Studio 200 Stereo Control Unit SC 011688 July 1988
Greg Swain & Bob Flynn
Notes/errata: August; October 1988, September 1989, November 1990
High Performance FM Antenna October 1988
Bob Flynn & Leo Simpson
The Classic Matchbox Crystal Set October 1988
Steve Payor
High Power PA Amplifier Module SC 0111881 November 1988
Leo Simpson & Bob Flynn
Add a Headset to the Speakerphone SC 1210988 November 1988
John Clarke & Greg Swain
120 Watt Public Address Amplifier SC 0111881 & SC0111288 December 1988
Leo Simpson & Bob Flynn; Notes/errata: April 1989
120 Watt Public Address Amplifier, Pt.2 SC0111288 January 1989
Leo Simpson; Notes/errata: April 1989
Minstrel 2-30 Loudspeaker System SC0110289 February 1989
Leo Simpson
Stereo Compressor For CD Players SC 01203891 March 1989
Malcolm Young & Greg Swain; Notes/errata: May 1989
Studio Series 32-Band Equaliser SC0110389 March 1989
John Clarke; Notes/errata: October 1989
Telephone Bell/Monitor Transmitter SC 01204891 April 1989
Greg Swain & Malcolm Young
Studio Series 32-Band Equaliser SC0110389 April 1989
Leo Simpson & John Clarke; Notes/errata: October 1989
Studio Series 20-Band Stereo Equaliser SC 01103892/01107892 August 1989
Leo Simpson & Bob Flynn
Studio Series 20-Band Stereo Equaliser SC 01103892/01107892 September 1989
Leo Simpson & Bob Flynn
Null Your Amplifier's DC Output To Zero SC 01108891 September 1989
John Clarke
Digital Voice Recorder Board SC 07111891 December 1989
John Clarke
Balanced Input/Output Stages SC 01112891 December 1989
John Clarke
A High Quality Audio Oscillator 04101901/2 January 1990
Leo Simpson
16-Channel Mixing Desk SC 01102901/2/3 February 1990
John Clarke & Leo Simpson; Notes/errata: October & November 1990
A High Quality Audio Oscillator, Pt.2 February 1990
Leo Simpson
16-Channel Mixing Desk SC01102901/2/3 March 1990
John Clarke & Leo Simpson; Notes/errata: October & November 1990
Build A VOX With Delayed Audio SC 06104901 April 1990
Darren Yates; Notes/errata: June 1990
16-Channel Mixing Desk, Pt.3 SC 01102901/2/3/4 April 1990
John Clarke & Leo Simpson; Notes/errata: October & November 1990
16-Channel Mixing Desk; Pt.4 SC 01102901/01102902/01102903 May 1990
John Clarke & Leo Simpson; Notes/errata: October 1990, November 1990
Kit(s): Jaycar
Universal Stereo Preamplifier SC 0110690 June 1990
John Clarke & Leo Simpson
Modifications To The 16-Channel Mixer November 1990
Silicon Chip
DC-DC Converter For Car Amplifiers SC 05111901 December 1990
John Clarke & Greg Swain; Notes/errata: March 1991
A Synthesised Stereo AM Tuner, Pt.1 SC 01101911/01101912/01101913 February 1991
John Clarke & Greg Swain; Notes/errata: September 1991, January 1993
Kit(s): DSE K5220
A Synthesised Stereo AM Tuner, Pt.2 SC 01101911/01101912/01101913 March 1991
John Clarke & Greg Swain; Notes/errata: September 1991, January 1993
Kit(s): DSE K5220
A Synthesised Stereo AM Tuner, Pt.3 SC 01101911/01101912/01101913 April 1991
John Clarke & Greg Swain; Notes/errata: September 1991, January 1993
Kit(s): DSE K5220
Stereo Audio Expander SC 01105911 May 1991
Darren Yates; Notes/errata: July 1991
Howl Suppression For PA Systems June 1991
Darren Yates
Error Analyser For CD Players, Pt.1 SC 01405911/01405912/01405913 July 1991
Stephen McBride
Loudspeaker Protector For Stereo Amplifiers SC 01105911 July 1991
Bob Flynn
Error Analyser For CD Players, Pt.2 SC 01405911/01405912/01405913 August 1991
Stephen McBride
Studio 3-55L 3-Way Loudspeaker System; Kit(s): Jaycar September 1991
Greg Swain
Error Analyser For CD Players, Pt.3 SC 01405911/01405912/01405913 November 1991
Stephen McBride
Build A 4-Channel Guitar Mixer SC 01101921 January 1992
Darren Yates; See also Circuit Notebook February 1996
Kit(s): DSE, Jaycar
Compact Digital Voice Recorder; Kit(s): Comma Corporation February 1992
Leo Simpson
Build A Stereo Power Amplifier SC 01102921 February 1992
Leo Simpson & Bob Flynn
Studio Twin Fifty Amplifier, Pt.1 SC 01103921/01103922/01103923/01102921 March 1992
Leo Simpson & Bob Flynn
Notes/errata: December 1992, February 1993, September 1993
Studio Twin Fifty Amplifier, Pt.2 SC 01103921/01103922/01103923/01102921 April 1992
Leo Simpson & Bob Flynn
Notes/errata: December 1992, February 1993, September 1993
The Eliminator SC 04104921 May 1992
Marque Crozman
Multi-Station Headset Intercom; Pt.1 SC 01302921 / 04104921 June 1992
Marque Crozman; Kit(s): Altronics K5250
Multi-Station Headset Intercom; Pt.2 SC 01302921 / 04104921 July 1992
Marque Crozman; Kit(s): Altronics K5250
Dummy Load Box For Large Audio Amplifiers August 1992
Leo Simpson
Build A Mini Amplifier For Personal Stereos SC 01110921 October 1992
Darren Yates; Kit(s): DSE
Build An FM Radio Receiver SC 06111921 November 1992
Darren Yates; Kit(s): DSE K5014
Peerless PSK60/2 2-Way Hifi Loudspeakers; Kit(s): DSE January 1993
Tom Manning
Build A Flea-Power AM Radio Transmitter SC 06112921 January 1993
Darren Yates
Audio Level / VU Meter With LED Readout ZA-1363 February 1993
Bernie Gilchrist; Kit(s): DSE K5370
Low-Cost Audio Mixer For Camcorders SC 01112921 March 1993
Darren Yates; Notes/errata: April 1993
Build An Audio Power Meter SC 01105931 April 1993
Darren Yates; Kit(s): Altronics, DSE
Remote Volume Control For Hifi Systems; Pt.1 SC 01305931/01305932 May 1993
John Clarke; Notes/errata: Remote Control Receiver ICs: April 1996
Build An AM Radio Trainer; Pt.1 SC 06106931 June 1993
Marque Crozman & Leo Simpson; Kit(s): DSE
Remote Volume Control For Hifi Systems; Pt.2 SC 01305931/01305932 June 1993
John Clarke; Notes/errata: Remote Control Receiver ICs: April 1996
Build A Single Chip Message Recorder SC 01104931 July 1993
Darren Yates; See also Circuit Notebook September 1997
Stereo Preamplifier With IR Remote Control; Pt.1 September 1993
SC 01308931/01308932/01308933/01308934
John Clarke; Notes/errata: April 1994
Stereo Preamplifier With IR Remote Control; Pt.2 October 1993
SC 01308931/01308932/01308933/01308934
John Clarke; Notes/errata: April 1994
A Solid State Message Recorder; Kit(s): DSE K9200 October 1993
Greg Swain
FM Wireless Microphone For Musicians FMTX October 1993
Branco Justic; Kit(s): Oatley Electronics
Stereo Preamplifier With IR Remote Control; Pt.3 SC 01308931/01308932 November 1993
John Clarke; Notes/errata: April 1994
Build A Siren Sound Generator ZA-1325 November 1993
Bernie Gilchrist; Kit(s): DSE K5514
A Low-Cost 25W Amplifier Module SC 01112931 December 1993
Darren Yates; Notes/errata: March 1995; Kit(s): Altronics K5113, DSE, Jaycar
Build A 1-Chip Melody Generator ZA-1324 December 1993
Bernie Gilchrist; Kit(s): DSE
Build A 90-Second Message Recorder SC 01202941 February 1994
Darren Yates; Kit(s): Altronics, Jaycar
A Single Chip Audio Amplifier SC 01102941 February 1994
Darren Yates; Notes/errata: June 1994
Kit(s): Altronics K2115, DSE K5604, Jaycar KC5152
Build A 50W Audio Amplifier Module SC 01103941 March 1994
Darren Yates; Notes/errata: December 2000, August 2003
Kit(s): Altronics K5114, DSE, Jaycar KC5150
Voice Activated Switch For FM Microphones SC 01203941 March 1994
Darren Yates
Low-Noise Universal Stereo Preamplifier SC 01106941 April 1994
Darren Yates; Notes/errata: Ref Circuit Notebook June 1996 For Selectable Gain
Kit(s): Altronics, DSE, Jaycar KC5159
200W/350W Mosfet Amplifier Module; Kit(s): Computer & Electronics Services June 1994
Anthony Holton
The Stoney Broke Loudspeaker System; Kit(s): Altronics June 1994
Leo Simpson
Convert Your Phono Inputs To Line Inputs SC 01105941 June 1994
Leo Simpson
SmallTalk: A Tiny Voice Digitiser For The PC; Kit(s): RAT Electronics July 1994
Darren Yates
The PreChamp 2-Transistor Preamplifier SC 01107941 July 1994
Darren Yates; Kit(s): Altronics K2112, DSE, Jaycar KC5166
Dual Diversity Tuner For FM Microphones; Pt.1 SC 06307941/06307942 August 1994
John Clarke; Notes/errata: September 1994
Dual Diversity Tuner For FM Microphones; Pt.2 SC 06307941/06307942 September 1994
John Clarke; Notes/errata: September 1994
Build A Talking Headlight Reminder SC 01109941 October 1994
Darren Yates; Kit(s): DSE, Jaycar
Dolby Pro-Logic Surround Sound Decoder; Pt.1 SC 02311941 December 1994
John Clarke; Kit(s): Jaycar
A 3-Spot Low Distortion Sinewave Oscillator SC 01110941 December 1994
Darren Yates
Dolby Pro-Logic Surround Sound Decoder; Pt.2 SC 02311941 January 1995
John Clarke; Kit(s): Jaycar
Build A Stereo Microphone Preamplifier SC 01111941 January 1995
Darren Yates
50-Watt/Channel Stereo Amplifier Module SC 01102951 February 1995
Leo Simpson & Bob Flynn; Notes/errata: March 1995; Ref Circuit Notebook June 1996
Kit(s): Altronics K5130, DSE, Jaycar
Digital Effects Unit For Musicians SC 01301951/01301952 February 1995
John Clarke; Notes/errata: March 1995; Kit(s): Jaycar
Wide Range Electrostatic Loudspeakers; Pt.1; Kit(s): ER Audio ESL III February 1995
Rob McKinlay
Subcarrier Decoder For FM Receivers SC 06303951 March 1995
John Clarke; Kit(s): Jaycar
50W/Channel Stereo Amplifier; Pt.1 March 1995
SC 01102951/01103951/01103952/01102951/01103953/01102951/01103954
Leo Simpson & Bob Flynn; Kit(s): Altronics, Jaycar
Wide Range Electrostatic Loudspeakers; Pt.2; Kit(s): ER Audio ESL III March 1995
Rob McKinlay
Build An FM Radio Trainer; Pt.1 SC 06303951 April 1995
John Clarke; Kit(s): DSE
Balanced Microphone Preamplifier & Line Mixer PED5531 April 1995
Leo Simpson; See Circuit Notebook May 1995 For Phantom Power
Kit(s): Altronics K5531
50W/Channel Stereo Amplifier; Pt.2 April 1995
SC 01102951/01103951/01103952/01102951/01103953/01102951/01103954
Leo Simpson & Bob Flynn; Kit(s): Altronics, Jaycar
Wide Range Electrostatic Loudspeakers; Pt.3; Kit(s): ER Audio ESL III April 1995
Rob McKinlay
Build A Mains Music Transmitter & Receiver CE/MUSA/94 & CE/MUSB/94 May 1995
Jeff Monegal; Notes/errata: July 1995; Kit(s): CTOAN Electronics
Guitar Headphone Amplifier For Practice Sessions SC 01305951 May 1995
John Clarke; Kit(s): Altronics, DSE, Jaycar
Build An FM Radio Trainer; Pt.2 SC 06303951/06304951 May 1995
John Clarke; Kit(s): DSE
A 1-Watt Audio Amplifier Trainer SC 01306951 June 1995
John Clarke; Kit(s): DSE
Vifa JV-60 2-Way Bass Reflex Loudspeaker System; Kit(s): Jaycar August 1995
Leo Simpson
A Gain-Controlled Microphone Preamp SC 01207951 August 1995
John Clarke; Kit(s): Altronics, Jaycar
Build The Mighty-Mite Powered Loudspeaker SC 01305951 August 1995
John Clarke
Audio Lab: A PC-Controlled Audio Test Instrument; Pt.2 September 1995
Kit(s): RSK Electronics
Roger Kent
A 3-Way Bass Reflex Loudspeaker System; Kit(s): Jaycar JV100 October 1995
Leo Simpson
Dolby Pro Logic Surround Sound Decoder, Mk.2 November 1995
SC 01409951/01409952/01409953/01409954/01409955
John Clarke; Notes/errata: January 1996, February 1996; Kit(s): Jaycar exclusive
Five Band Equaliser Uses Two Low-Cost ICs SC 01309951 December 1995
John Clarke; Notes/errata: January 1996; Kit(s): Altronics K5305, Jaycar
Build A Subwoofer Controller; Kit(s): Altronics K5562/K5563 exclusive December 1995
Leo Simpson; Notes/errata: February 1996
Dolby Pro Logic Surround Sound Decoder, Mk.2; Pt.2 December 1995
SC 01409951/01409952/01409953/01409954/01409955
John Clarke; Notes/errata: January 1996, February 1996; Kit(s): Jaycar exclusive
Surround Sound Mixer & Decoder; Pt.1 SC 02302961/02302962/02302963 January 1996
John Clarke
Surround Sound Mixer & Decoder; Pt.2 SC 02302961/02302962/02302963 February 1996
John Clarke
Automatic Level Control For PA Systems SC 01303961 March 1996
John Clarke; See Ask SC June 1996 For Loudspeaker Protection
A 20ms Delay For Surround Sound Decoders SC 01401961 March 1996
John Clarke; Kit(s): Altronics K5595, Jaycar
A High-Power HiFi Amplifier Module SC 01104961 April 1996
Leo Simpson & Bob Flynn
November 1996; see March 2000 for refined version
Kit(s): DSE, Jaycar KC5201
Duplex Intercom Using Fibre-Optic Cable; Kit(s): DIY/Ozitronics Kit 39 May 1996
Leo Simpson
A High-Performance Stereo Simulator SC 01406961 June 1996
John Clarke; Notes/errata: September 1996; Kit(s): Altronics K5950
A Three-Band Parametric Equaliser SC 01107961 July 1996
Bob Flynn; Kit(s): Altronics K5330, Jaycar
A 350-Watt Audio Amplifier Module; Kit(s): Altronics K5180 exclusive August 1996
Leo Simpson
Portable Masthead Amplifier For TV & FM; Kit(s): Oatley Electronics August 1996
Branco Justic
Infrared Stereo Headphone Link; Pt.1 SC 01109961/01109962/01109963 September 1996
Rick Walters
High Quality Loudspeaker For Public Address SC 01310961/01310962 September 1996
John Clarke
600W DC-DC Converter For Car Hifi Systems; Pt.1 SC 05308961 October 1996
John Clarke; Kit(s): Jaycar
Infrared Stereo Headphone Link; Pt.2 SC 01109961/01109962/01109963 October 1996
Rick Walters
Build A Multimedia Sound System; Pt.1 SC 01110961 October 1996
Rick Walters; Notes/errata: February 1997, July 1997; Kit(s): Altronics, Jaycar
Build An 8-Channel Stereo Mixer; Pt.1 SC 01210961/01210962 November 1996
John Clarke; Kit(s): Jaycar
Build A Multimedia Sound System; Pt.2 SC 01110961 November 1996
Rick Walters; Notes/errata: February 1997, July 1997; Kit(s): Altronics, Jaycar
600W DC-DC Converter For Car Hifi Systems; Pt.2 SC 05308961 November 1996
John Clarke; Kit(s): Jaycar
Active Filter Cleans Up Weak CW Reception SC 06112961 December 1996
Leon Williams
Build An 8-Channel Stereo Mixer; Pt.2 SC 01210961/01210962 December 1996
John Clarke; Kit(s): Jaycar
Build A Pink Noise Source 04312962 January 1997
John Clarke; Notes/errata: January 2001; Kit(s): Altronics, DSE
Plastic Power PA Amplifier SC 01103971 March 1997
Ross Tester
Loudspeaker Protector For Stereo Amplifiers SC 01104971 April 1997
Leo Simpson & Bob Flynn; Notes/errata: June 1997; Kit(s): DSE, Jaycar
Infrared Remote Volume Control; Kit(s): Oatley Electronics July 1997
Leo Simpson
Simple Waveform Generator SC 01307971 July 1997
John Clarke; Kit(s): Jaycar
The Bass Barrel Subwoofer; Kit(s): Altronics August 1997
Julian Edgar
A 500 Watt Audio Power Amplifier Module SC 01208971 August 1997
Leo Simpson & Bob Flynn; Notes/errata: Feedback: March 1998
Kit(s): Altronics, DSE, Jaycar
Building The 500W Audio Power Amplifier; Pt.2 SC 01208971 September 1997
Leo Simpson & Bob Flynn; Notes/errata: Feedback: March 1998
Kit(s): Altronics, DSE, Jaycar
Building The 500W Audio Power Amplifier; Pt.3 SC 01208971 October 1997
Leo Simpson & Bob Flynn; Notes/errata: Feedback: March 1998
Kit(s): Altronics, DSE, Jaycar
Loudness Control For Car Hifi Systems SC 01111971 December 1997
Rick Walters; Kit(s): Jaycar
Build Your Own 4-Channel Lightshow; Pt.1 SC 01112971/01112972 January 1998
Leo Simpson & Rick Walters; Kit(s): Altronics, Jaycar
Build Your Own 4-Channel Lightshow; Pt.2 SC 01112971/01112972 February 1998
Leo Simpson & Rick Walters; Kit(s): Altronics, Jaycar
Sustain Unit For Electric Guitars SC 01302981 March 1998
John Clarke; Notes/errata: July 1999; Kit(s): Altronics, Jaycar
PC-Controlled 0-30kHz Sinewave Generator; Kit(s): Softmark April 1998
Mark Roberts
The Roadies' Friend Cable Tester; Kit(s): Hoad Electronics June 1998
Paul Hoad
15-Watt Class-A Amplifier Module SC 01207981 July 1998
Leo Simpson; Kit(s): Altronics K5109
The Opus One Loudspeaker System; Kit(s): Altronics August 1998
Leo Simpson; Notes/errata: October 1998
15W/Channel Class-A Stereo Amplifier SC 01207981 August 1998
Leo Simpson; Kit(s): Altronics K5109
A Waa-Waa Pedal For Your Guitar SC 01307981 September 1998
John Clarke; Kit(s): Altronics, DSE, Jaycar
An FM Transmitter For Musicians; Kit(s): Oatley Electronics November 1998
Branco Justic
Low Distortion Audio Signal Generator; Pt.1 SC 01402991/01402992 February 1999
John Clarke; Notes/errata: May 1999, August 2000; Kit(s): Altronics K2548, Jaycar
Easy-To-Build Audio Compressor SC 01303991 March 1999
John Clarke; Kit(s): Altronics K5525
Low Distortion Audio Signal Generator; Pt.2 SC 01402991/01402992 March 1999
John Clarke; Notes/errata: May 1999, August 2000; Kit(s): Altronics K2548, Jaycar
The Bass Cube Subwoofer April 1999
Julian Edgar; Notes/errata: May 1999
An Audio-Video Transmitter SC 02405991 July 1999
John Clarke; Notes/errata: September 1999, February 2001
Kit(s): Altronics K5865, Jaycar KC5272
Voice Direct Speech Recognition Module SC 07109991 September 1999
Ross Tester; Notes/errata: October 1999; Kit(s): Adilam Electronics
Foldback Loudspeaker System For Musicians November 1999
John Clarke
Spring Reverberation Module SC 01402000 January 2000
John Clarke; Kit(s): Jaycar
An Audio-Video Test Generator SC 04101001 January 2000
Leon Williams; Kit(s): Altronics K2718, DSE, Jaycar
Pink Noise Source SC 04312962 January 2000
John Clarke
A Sine/Square Wave Oscillator For Your Workbench SC 04102001 February 2000
Rick Walters; See also Circuit Notebook May 2001 for metering
Kit(s): Altronics, Jaycar
Ultra-LD 100W Stereo Amplifier; Pt.1 SC 01103001 March 2000
Leo Simpson; Notes/errata: August 2000; Kit(s): Altronics K5150, Jaycar
Aura Interactor Amplifier March 2000
Leo Simpson
Building The Ultra-LD 100W Stereo Amplifier; Pt.2 SC 01103001 May 2000
Leo Simpson; Notes/errata: August 2000; Kit(s): Altronics K5150, Jaycar
CD Compressor For Cars Or The Home SC 01106001 June 2000
John Clarke; Kit(s): Altronics K5580, Jaycar KC5291
Build A Theremin SC 01207001 August 2000
John Clarke; Kit(s): Altronics, DSE K3015, Jaycar KC5295
Loudspeaker Protector And Fan Controller SC 01108001 August 2000
Peter Smith & Leo Simpson; Notes/errata: September 2000; Kit(s): Altronics, Jaycar
Guitar Jammer For Practice & Jam Sessions SC 01110001 October 2000
Peter Smith & Leo Simpson; Kit(s): Altronics K5536, Jaycar
Installing A Free-Air Subwoofer In Your Car October 2000
Julian Edgar
2-Channel Guitar Preamplifier SC 01111001 November 2000
John Clarke; Notes/errata: January 2001, September 2002
Kit(s): Altronics K5340, Jaycar
2-Channel Guitar Preamplifier, Pt.2: Digital Reverb SC 01112001 December 2000
John Clarke; Notes/errata: January 2001, September 2002
Kit(s): Altronics K5340, Jaycar
The LP Doctor: Cleaning Up Clicks & Pops; Pt.1 SC 01101011 January 2001
John Clarke & Leo Simpson
Notes/errata: March 2001, April 2001, June 2001, January 2002, June 2002
Kit(s): DSE K5425
The WaveMaker: An Arbitrary Waveform Generator SC 04101011 January 2001
David Sibley
2-Channel Guitar Preamplifier, Pt.3 SC 01111001/01112001 January 2001
John Clarke; Notes/errata: January 2001, September 2002
Kit(s): Altronics K5340, Jaycar
Digital Reverb - The Missing Pages SC 01112001 January 2001
John Clarke
MIDI-Mate: A MIDI Interface For PCs SC 01201011 February 2001
Jim Rowe; Notes/errata: February 2003; Kit(s): Jaycar
Bass Blazer Sub Woofer Display SC 01102011/01102012/01102013 February 2001
Rick Walters; Notes/errata: April 2001; Kit(s): Altronics K5410, Jaycar
The LP Doctor: Cleaning Up Clicks & Pops; Pt.2 SC 01101011 February 2001
John Clarke & Leo Simpson
Notes/errata: March 2001, April 2001, June 2001, January 2002, June 2002
Kit(s): DSE K5425
A Tremolo Unit For Musicians SC 01104011 April 2001
John Clarke; Kit(s): DSE, Jaycar
Powerful 12V Mini Stereo Amplifier SC 01105011 May 2001
John Clarke; Kit(s): Altronics K5100
A Direct Injection Box For Musicians SC 011080110 August 2001
John Clarke; Notes/errata: September 2001; Kit(s): Altronics, DSE, Jaycar
Build A 200W Mosfet Amplifier Module; Kit(s): Altronics K5172 August 2001
Leo Simpson
Build Your Own MP3 Jukebox; Pt.1 SC 07109011 September 2001
Peter Smith; Notes/errata: January 2002, April 2002, December 2002
Kit(s): Altronics
Personal Noise Source For Tinnitus Sufferers SC 01109011 September 2001
John Clarke; Kit(s): Altronics, DSE, Jaycar KC5319
The Sooper Snooper; Kit(s): Oatley Electronics September 2001
Ross Tester; Notes/errata: June 2002
Build Your Own MP3 Jukebox; Pt.2 SC 07109011 October 2001
Peter Smith; Notes/errata: January 2002, April 2002, December 2002
Kit(s): Altronics
100W RMS/Channel Stereo Amplifier; Pt.1 November 2001
SC 01112011/01112012/01112013/01112014/01112015
Greg Swain & John Clarke; Notes/errata: April 2007; Kit(s): Altronics K5155
A Low-Cost Audio/Video Distribution Amplifier SC 02111011 November 2001
Jim Rowe; Notes/errata: December 2001, April 2002, June 2002
Kit(s): Jaycar KC5320
Short Message Recorder & Player SC 01111011 November 2001
Leon Williams
100W RMS/Channel Stereo Amplifier; Pt.2 December 2001
SC 01112011/01112012/01112013/01112014/01112015
Greg Swain & Leo Simpson; Notes/errata: April 2007; Kit(s): Altronics K5155
100W RMS/Channel Stereo Amplifier; Pt.3 January 2002
SC 01112011/01112012/01112013/01112014/01112015
Greg Swain & Leo Simpson; Notes/errata: April 2007; Kit(s): Altronics K5155
A 2.4GHz High-Power Audio-Video Link; Kit(s): Oatley Electronics February 2002
Ross Tester
Assemble Your Own 2-Way Tower Speakers; Kit(s): VAF Research February 2002
Leo Simpson
The Mighty Midget Audio Amplifier Module SC 01203021 March 2002
Rick Walters; Notes/errata: May 2002, June 2002
Kit(s): Altronics K5140, DSE K5401, Jaycar KC5329
6-Channel IR Remote Volume Control, Pt.1 SC 01103021/01103022/01103023 March 2002
John Clarke; Notes/errata: June 2002; Kit(s): Altronics
RIAA Preamplifier For Magnetic Cartridges SC 01303021 March 2002
Leo Simpson & Ross Tester; Notes/errata: March 2003
6-Channel IR Remote Volume Control, Pt.2 SC 01103021/01103022/01103023 April 2002
John Clarke; Notes/errata: June 2002; Kit(s): Altronics
Build A Stereo Headphone Amplifier SC 01105021 May 2002
Ross Tester; Kit(s): Altronics K5506, DSE, Jaycar KC5335
Remote Volume Control For Stereo Amplifiers SC 15106021 June 2002
John Clarke; Kit(s): Altronics K5026
Remote Volume Control For The Ultra-LD Amplifier July 2002
SC 01107021, 15106022, 15106023
John Clarke & Greg Swain; Kit(s): Altronics & DSE
Sound Card Interface For PC Test Instruments SC 04108021 August 2002
Peter Smith; See also Circuit Notebook May 2003
Wi-Fi: 21st Century Cat's Whiskers November 2002
Stan Swan
The SC480 50W RMS Amplifier Module SC 01201031/01201032/01201033 January 2003
Peter Smith and Leo Simpson; Notes/errata: December 2005
Kit(s): Altronics K5120/K5122, DSE K3431/K3432, Jaycar KC5345/KC5346/KC5347
Active 3-Way Crossover For Loudspeaker Systems SC 01101031 January 2003
Mick Gergos; Notes/errata: May 2004
Kit(s): Elliott Sound Products sound-au.com, Jaycar KC5343 (no longer available)
The PortaPAL Public Address System February 2003
SC 01103031/01103032/01103033, EPE 562/563/564/565
John Clarke and Leo Simpson; Notes/errata: March 2003, May 2003, December 2004
Kit(s): Altronics K5360
The SC480 50W RMS Amplifier Module; Pt.2 SC 01201031/01201032/01201033 February 2003
Peter Smith and Leo Simpson; Notes/errata: December 2005
Kit(s): Altronics K5120/K5122, DSE K3431/K3432, Jaycar KC5345/KC5346/KC5347
The PortaPAL Public Address System; Pt.2 March 2003
SC 01103031/01103032/01103033, EPE 562/563/564/565
John Clarke and Leo Simpson; Notes/errata: March 2003, May 2003, December 2004
Kit(s): Altronics K5360
The Little Dynamite Subwoofer March 2003
Julian Edgar
Video-Audio Booster For Home Theatre Systems SC 02104031, EPE 558 April 2003
Jim Rowe; Kit(s): Jaycar KC5350/KC5351
WidgyBox - A Guitar Distortion Effects Unit SC 01105031, EPE 573 May 2003
Peter Smith; Kit(s): Altronics K5541, Jaycar KC5353
The Big Blaster Subwoofer May 2003
Julian Edgar
Fitting A Wireless Microphone To The PortaPAL August 2003
Ross Tester
The JV80 Loudspeaker System; Kit(s): Jaycar October 2003
Design by Phil Routley, words by Leo Simpson & assembled by Michelle Oneile
A 12AX7 Valve Audio Preamplifier SC 01111031/01111032 November 2003
Jim Rowe; Kit(s): Jaycar KC5370/KC5371
Studio 350 Power Amplifier Module SC 01102041, EPE 591 January 2004
Leo Simpson & Peter Smith; Notes/errata: February & April 2004, April 2006
Kit(s): Altronics K5185 (discontinued), Jaycar KC5372
Lapel Microphone Adaptor For PA Systems SC 01101041/01101042, EPE 593 January 2004
John Clarke; See Circuit Notebook Feb 2004 for Phantom Supply
2.4GHz Audio/Video Link; Kit(s): Oatley Electronics January 2004
Ross Tester
Studio 350 Power Amplifier Module; Pt.2 EPE PCB591 February 2004
Leo Simpson & Peter Smith; Notes/errata: February & April 2004, April 2006
Kit(s): Altronics K5185 (discontinued), Jaycar KC5372
Using The Valve Preamp In A Hifi System February 2004
Jim Rowe; Notes/errata: Refer project November 2003
Loudspeaker Level Meter For Home Theatre Systems SC 01104041, EPE 577 April 2004
John Clarke; Kit(s): Altronics K2552 DSE K5624
Regulated High-Voltage Supply For Valve Amplifiers; Kit(s): DSE K3438 July 2004
Leonid Lerner
Balanced Microphone Preamplifier SC 01108041, EPE 599 August 2004
John Clarke; Notes/errata: January 2005; Kit(s): DSE K7219
Schoolies 20W Amplifier Module SC 01112041/01201033, EPE 613/614 December 2004
Peter Smith; Kit(s): Altronics K5116, DSE K3405, Jaycar KC5403
Build A V8 Doorbell SC 05101051, EPE 637/638 January 2005
John Clarke; Notes/errata: March 2005; Kit(s): Jaycar KC5405/KC5406
TwinTen Stereo Amplifier SC 01102051, EPE 626 February 2005
Jim Rowe & Peter Smith
Bass Extender For Hifi Systems SC 01104051, EPE 618 April 2005
Rick Walters; Notes/errata: July 2005
Kit(s): Altronics K5561, DSE K5592, Jaycar KC5411
Voice Recorder SC 01105051 May 2005
Jim Rowe; See enhanced version December 2007; Kit(s): Jaycar KC5412
Wireless Microphone/Audio Link; Kit(s): Oatley Electronics K222 May 2005
Ross Tester
The Mudlark A205 Valve Stereo Amplifier; Kit(s): Gless Audio August 2005
David Whitby
The Mudlark A205 Valve Stereo Amplifier, Pt.2; Kit(s): Gless Audio September 2005
David Whitby
Studio Series Stereo Preamplifier SC 01109051/ 01109052 (power supply) EPE 658 October 2005
Peter Smith; Notes/errata: February 2006
Kit(s): Altronics K5501/K5502, Jaycar KC5418 (power supply only)
Studio Series Stereo Headphone Amplifier SC 01111051, EPE 662 November 2005
Peter Smith; Kit(s): Altronics K5503/K5501 Jaycar KC5417/KC5418
Delta XL02 Tower Loudspeaker System; Kit(s): www.kitaudio.com November 2005
Leo Simpson
Building The Ultimate Jukebox; Pt.1 December 2005
Ross Tester
Building The Ultimate Jukebox; Pt.2 January 2006
Ross Tester
Building The Ultimate Jukebox; Pt.3 February 2006
Ross Tester
Studio Series Remote Control Module SC 01104061, EPE 663 April 2006
Peter Smith; Notes/errata: April 2007; Kit(s): Altronics K5504
4-Channel Audio/Video Selector SC 02104061, EPE 676 April 2006
Jim Rowe
A Passive Direct Injection Box For Musicians May 2006
John Clarke
Direct Injection From A 70V/100V Speaker Line May 2006
Ross Tester
Boost Your XBee’s Range Using Simple Antennas May 2006
Stan Swan
Pocket A/V Test Pattern Generator; Kit(s): Altronics K2725 (discontinued) June 2006
Mick Gergos
Two-Way SPDIF/Toslink Digital Audio Converter SC 01106061 June 2006
Jim Rowe; Kit(s): Jaycar KC5425
Build A 2.4GHz Wireless A/V Link; Kit(s): Oatley Electronics K229 June 2006
Ross Tester
Starship “Enterprise” Door Sounder; Kit(s): Jaycar KC5423 June 2006
Jim Rowe
Mini Theremin Mk.2; Pt.1 SC 01207061, EPE 670 July 2006
John Clarke; Notes/errata: December 2006; Kit(s): Jaycar KC5426
Studio Series Stereo Preamplifier; Kit(s): Altronics K5500/K5500S July 2006
Peter Smith
Build A Magnetic Cartridge Preamplifier SC 01108061 August 2006
John Clarke; Notes/errata: December 2007; Kit(s): Altronics K5513, Jaycar KC5433
An Ultrasonic Eavesdropper SC 01208061, EPE 683 August 2006
Jim Rowe; Notes/errata: October 2006
Mini Theremin Mk.2; Pt.2 SC 01207061, EPE 670 August 2006
John Clarke; Notes/errata: December 2006; Kit(s): Jaycar KC5426
Build Your Own Compact Bass Reflex Loudspeakers; Kit(s): theloudspeakerkit.com November 2006
Aaron Waplington
Remote Volume Control & Preamplifier Module; Pt.1 February 2007
SC 01102071/01102072/01102073/01102074, EPE 714-716
Peter Smith
Remote Volume Control & Preamplifier Module; Pt.2 March 2007
SC 01102071/01102072/01102073/01102074, EPE 714-716
Peter Smith
A 20W Class-A Amplifier Module May 2007
SC 01105071/01105072/01105073/01207071/01208071, EPE 687/689/693/696
Leo Simpson & Peter Smith; Notes/errata: September 2007, April 2011
Kit(s): Altronics K5124, K5125, K5126, K5127, K5128
VU/Peak Meter With LCD Bargraphs SC 01205071/01205072, EPE 702/703 May 2007
John Clarke; Notes/errata: June 2007; Kit(s): Jaycar KC5447
20W Class-A Amplifier Module; Pt.2 June 2007
SC 01105071/01105072/01105073/01207071/01208071, EPE 687/689/693/696
Leo Simpson; Notes/errata: September 2007, April 2011
Kit(s): Altronics K5124, K5125, K5126, K5127, K5128
Versatile 4-Input Mixer With Tone Controls SC 01106071, EPE 704 June 2007
Jim Rowe; Notes/errata: November 2007; Kit(s): Altronics K5353, Jaycar KC5448
20W Class-A Amplifier Module; Pt.3 July 2007
SC 01105071/01105072/01105073/01207071/01208071, EPE 687/689/693/696
Greg Swain & Peter Smith; Notes/errata: September 2007, April 2011
Kit(s): Altronics K5124, K5125, K5126, K5127, K5128
20W Class-A Amplifier Module; Pt.4 August 2007
SC 01105071/01105072/01105073/01207071/01208071, EPE 687/689/693/696
John Clarke & Greg Swain; Notes/errata: September 2007, April 2011
Kit(s): Altronics K5124, K5125, K5126, K5127, K5128
Subwoofer Controller SC 01108071 August 2007
Jim Rowe; Notes/errata: December 2007, December 2008; Kit(s): Jaycar KC5452
Building The 20W Stereo Class-A Amplifier; Pt.5 September 2007
SC 01105071/01105072/01105073/01207071/01208071, EPE 687/689/693/696
Greg Swain; Notes/errata: September 2007, April 2011
Kit(s): Altronics K5124, K5125, K5126, K5127, K5128
AM Loop Antenna & Amplifier EPE 813/814 October 2007
Branko Justic & Ross Tester; Kit(s): Oatley Electronics K256
Playback Adaptor For CD-ROM Drives SC 07112071, EPE 740 November 2007
Mauro Grassi; Notes/errata: December 2007; Kit(s): Jaycar KC5459
Signature Series Kit Loudspeaker System; Kit(s): www.wagner.net.au December 2007
Russell Storey & Leo Simpson
Infrared Audio Headphone Link For TV SC 01112071/01112072, EPE 708/709 December 2007
Jim Rowe
An Enhanced 45-Second Voice Recorder Module EPE 797 December 2007
Jim Rowe; Notes/errata: February 2008; Kit(s): Jaycar KC5454
Playback Adaptor For CD-ROM Drives; Pt.2 SC 07112071, EPE 740 December 2007
Mauro Grassi; See also Circuit Notebook, July 2008
Kit(s): Jaycar KC5459
Build The “Aussie-3” Valve AM Radio January 2008
Keith Walters
Two-Way Stereo Headphone Adaptor SC 01104081, EPE 748 April 2008
Mauro Grassi; See also Circuit Notebook June 2008
DSP Musicolour Light Show SC 10107081/10107082/10107083, EPE 759/760/764 June 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
Balanced/Unbalanced Converter For Audio Signals SC 01106081/01106082, EPE 770 June 2008
John Clarke; Kit(s): Altronics K5522, Jaycar KC5468
DSP Musicolour Light Show; Pt.2 SC 10107081/10107082/10107083, EPE 759/760/764 July 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
Balanced Mic Preamp For PCs & MP3 Players SC 01107081, EPE 780 July 2008
John Clarke
Bridge Adaptor For Stereo Power Amplifiers SC 01106081/01106082, EPE 770 July 2008
Leo Simpson; Kit(s): Altronics K5566
Ultra-LD Mk.2 200W Power Amplifier Module SC 01108081/01109081, EPE 767/768 August 2008
Leo Simpson & John Clarke; Notes/errata: September 2008
Kit(s): Altronics K5151, Jaycar KC5470 KC5471
DSP Musicolour Light Show; Pt.3 SC 10107081/10107082/10107083, EPE 759/760/764 August 2008
Mauro Grassi; Notes/errata: July & Septemgber 2008; Kit(s): Altronics K5803
Ultra-LD Mk.2 200W Power Amplifier Module, Pt.2 September 2008
SC 01108081/01109081, EPE 767/768
John Clarke & Greg Swain; Notes/errata: September 2008
Kit(s): Altronics K5151, Jaycar KC5470 KC5471
DSP Musicolour Light Show; Pt.4 SC 10107081/10107082/10107083, EPE 759/760/764 September 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
AM Broadcast Band Portable Loop Antenna January 2009
Stan Swan
New, Improved Theremin Mk.2 SC 01203091, EPE 795 March 2009
John Clarke; Notes/errata: April 2009; Kit(s): Jaycar KC5475
Build A Digital Audio Millivoltmeter SC 04103091, EPE 794 March 2009
Jim Rowe; See May 2009 for Input Attenuator
Microcontrollers Can Be A Snap; Kit(s): Kitset March 2009
Stan Swan
Input Attenuator For The Digital Audio Millivoltmeter SC 04205091, EPE 811 May 2009
Jim Rowe
Hand-Held Digital Audio Oscillator EPE 803 June 2009
Darian Lovett & Mauro Grassi; Kit(s): Altronics K2543
Multi-Function Active Filter Module SC 01107091, EPE 812 July 2009
John Clarke; Notes/errata: August 2009; Kit(s): Jaycar KC5480
An SD Card Music & Speech Recorder/Player SC 01108092, EPE 815 August 2009
Mauro Grassi; Notes/errata: September, November, December 2009 and January 2012
Kit(s): Altronics K5545 Jaycar KC5481
High-Quality Stereo Digital-To-Analog Converter, Pt.1 September 2009
SC 01109091/01109092/01109093, EPE 820-823
Nicholas Vinen; Notes/errata: December 2009, February & June 2010, December 2011
Kit(s): Altronics K5332 Jaycar KC5487
High-Quality Stereo Digital-To-Analog Converter, Pt.2 October 2009
SC 01109091/01109092/01109093, EPE 820-823
Nicholas Vinen; Notes/errata: December 2009, February & June 2010, December 2011
Kit(s): Altronics K5332 Jaycar KC5487
High-Quality Stereo Digital-To-Analog Converter, Pt.3 November 2009
SC 01109091/01109092/01109093, EPE 820-823
Nicholas Vinen; Notes/errata: December 2009, February & June 2010, December 2011
Kit(s): Altronics K5332 Jaycar KC5487
A Dead-Simple Masthead Amplifier; Kit(s): Altronics K274 November 2009
Branko Justic & Ross Tester
A Balanced Output Board for the Stereo DAC SC 01101101, EPE 833 January 2010
Nicholas Vinen; Notes/errata: February 2010
Digital Audio Signal Generator, Pt.1 March 2010
SC 04203101/04203102/04203103, EPE 838/839
Nicholas Vinen; Notes/errata: June & August 2010; Kit(s): Altronics K2553
Digital Audio Signal Generator, Pt.2 April 2010
SC 04203101/04203102/04203103, EPE 838/839
Nicholas Vinen; Notes/errata: June & August 2010; Kit(s): Altronics K2553
Build A Compact 12V 20W Stereo Amplifier SC 01104101, EPE 843 May 2010
Nicholas Vinen; Kit(s): Altronics K5136, Jaycar KC5495 (discontinued)
Digital Audio Signal Generator, Pt.3 May 2010
SC 04203101/04203102/04203103, EPE 838/839
Nicholas VInen; Notes/errata: June & August 2010; Kit(s): Altronics K2553
High-Performance Microphone Preamplifier SC 01109101, EPE 859 September 2010
Nicholas Vinen; Notes/errata: November 2010; Kit(s): Altronics K5514
Build A Hearing Loop Receiver SC 01209101, EPE 865 September 2010
John Clarke; Notes/errata: October 2010; Kit(s): Altronics K5547, Jaycar KC5497
A High-Quality DAB+/FM Tuner, Pt.1 SC 01110101/01110102 October 2010
Mauro Grassi; Notes/errata: November & December 2010, May 2011
Kit(s): Jaycar KC5491
Two Toslink-S/PDIF Audio Converters To Build SC 01210101/01210102, EPE 868/869 October 2010
Nicholas Vinen; Kit(s): Altronics K5174/K5175
Build A Hearing Loop Level Meter SC 01111101 November 2010
John Clarke
A High-Quality DAB+/FM Tuner, Pt.2 SC 01110101/01110102 November 2010
Mauro Grassi; Notes/errata: November & December 2010, May 2011
Kit(s): Jaycar KC5491
A High-Quality DAB+/FM Tuner, Pt.3 SC 01110101/01110102 December 2010
Mauro Grassi; Notes/errata: November & December 2010, May 2011
Kit(s): Jaycar KC5491
Build A Hearing Loop Level Meter, Pt.2 SC 01111101 December 2010
John Clarke
Hearing Loop Signal Conditioner SC 01101111 January 2011
John Clarke; Notes/errata: January 2012
Microphone To Neck Loop Coupler For Hearing Aids SC 01209101/01209102 March 2011
John Clarke
Portable Headphone Amplifier For MP3 Players SC 01104111 April 2011
Nicholas Vinen; Kit(s): Altronics K5508
Fixing Transformer Buzz In The Class-A Amplifier SC 01105074 April 2011
Leo Simpson; Notes/errata: Ref project May-September 2007
Cheap’n’Simple 100V Speaker/Line Checker SC 04104111 April 2011
Ross Tester
The SportSync Audio Delay Module SC 01105111 May 2011
Nicholas Vinen
USB Stereo Recording & Playback Interface SC 07106111 June 2011
Jim Rowe; Notes/errata: July 2011
Ultra-LD Mk.3 200W Amplifier Module SC 01107111 July 2011
Nicholas Vinen; Notes/errata: June 2012; Kit(s): Altronics K5154 (amp module)
Build A Voice-Activated Relay (VOX) SC 01207111 July 2011
John Clarke; Kit(s): Altronics K5542
An Electronic Stethoscope SC 01108111 August 2011
John Clarke
Ultra-LD Mk.3 200W Amplifier Module, Pt.2 SC 01107111 August 2011
Nicholas Vinen; Notes/errata: June 2012; Kit(s): Altronics K5154 (amp module)
High-Performance Stereo Headphone Amplifier, Pt.1 SC 01309111 September 2011
Nicholas Vinen
Ultra-LD Mk.3 200W Amplifier Module, Pt.3 SC 01107111 September 2011
Nicholas Vinen; Notes/errata: June 2012; Kit(s): Altronics K5154 (amp module)
Upgrading An Ultra-LD Mk.2 Amplifier To Mk.3 Standard SC 01209111 September 2011
Nicholas Vinen
Build A Loudspeaker Protector SC 01207071 October 2011
Silicon Chip; Kit(s): Altronics K5167
Measuring Audio Gear Without Spending Big Dollars October 2011
Jim Rowe
High-Performance Stereo Headphone Amplifier, Pt.2 SC 01309111 October 2011
Nicholas Vinen
Ultra-LD Stereo Preamplifier & Input Selector, Pt.1 November 2011
SC 01111111/01111112/01111113
John Clarke & Greg Swain; Kit(s): Altronics K5164/K5169
Digital Audio Delay For Perfect Lip Sync SC 01212111 December 2011
Nicholas Vinen; Notes/errata: January 2012; Kit(s): Jaycar KC5506
Ultra-LD Stereo Preamplifier & Input Selector, Pt.2 December 2011
SC 01111111/01111112/01111113
John Clarke & Greg Swain; Kit(s): Altronics K5164/K5169
A Stereo Audio Compressor SC 01201121 January 2012
John Clarke; Kit(s): Altronics K5526, Jaycar KC5507
3-Input Stereo Audio Switcher SC 01101121/01101122 January 2012
John Clarke & Greg Swain
Crystal DAC: A High-Performance Upgrade SC 01102121 February 2012
Nicholas VInen; Notes/errata: June & July 2012
Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.1 March 2012
SC 01107111/01109111/01111111/01111112/01111113
Greg Swain; Kit(s): Altronics K5165 (complete) / K5154 (amp module) / K5164 (input selector) / K5166 (chassis) / K5167 (speaker protector) / K5168 (power supply) / K5169 (preamp) / MC5540 (transformer)
Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.2 April 2012
SC 01107111/01109111/01111111/01111112/01111113
Greg Swain; Kit(s): Altronics K5165 (complete) / K5154 (amp module) / K5164 (input selector) / K5166 (chassis) / K5167 (speaker protector) / K5168 (power supply) / K5169 (preamp) / MC5540 (transformer)
Ultra-LD Mk.3 135W/Channel Stereo Amplifier, Pt.3 May 2012
SC 01107111/01109111/01111111/01111112/01111113
Nicholas Vinen; Kit(s): Altronics K5165 (complete) / K5154 (amp module) / K5164 (input selector) / K5166 (chassis) / K5167 (speaker protector) / K5168 (power supply) / K5169 (preamp) / MC5540 (transformer)
Mix-It: An Easy-To Build 4-Channel Mixer SC 01106121 June 2012
Nicholas Vinen; Notes/errata: August 2012
Digital Sound Effects Generator SC 09109121 September 2012
Nicholas Vinen; Notes/errata: June 2013
LED Musicolour: Light Up Your Music, Pt.1 SC 16110121/16110122/16110123 October 2012
Nicholas Vinen; Kit(s): Altronics K5804
High-Power Class-D Audio Amplifier, Pt.1 SC 01108121/01108122 November 2012
John Clarke; Notes/errata: December 2012, January 2013
Kit(s): Altronics K5181/K5182, Jaycar KC5514/5515
CLASSIC-D Speaker Protector SC 01108122 November 2012
John Clarke
LED Musicolour: Light Up Your Music, Pt.2 SC 16110121/16110122/16110123 November 2012
Nicholas Vinen; Kit(s): Altronics K5804
High-Power Class-D Audio Amplifier, Pt.2 December 2012
SC 01108121/01108122 (power supply SC 01109111)
John Clarke; Notes/errata: December 2012, January 2013
Kit(s): Altronics K5181/K5182, Jaycar KC5514/5515
CLASSIC-D Amplifier Power Supply SC 01109111 December 2012
John Clarke
The Champion Preamp/Audio Amplifier Module SC 01109121/01109122 January 2013
Nicholas Vinen; Kit(s): Jaycar KC5519 Altronics K6044 (preamp)/K6066 (amp)
Performance Tweak For The Ultra-LD Mk.3 Amplifier January 2013
Leo Simpson
High Performance CLASSiC DAC; Pt.1 SC 01102131/01102132/01102133 February 2013
Nicholas Vinen; Notes/errata: August & September 2013; Kit(s): None
High Performance CLASSiC DAC; Pt.2 SC 01102131/01102132/01102133 March 2013
Nicholas Vinen; Notes/errata: August & September 2013
Infrasound Detector For Low Frequency Measurements March 2013
Kit(s): Champ and Pre-champ available from Jaycar & Altronics
Allan Linton-Smith & Ross Tester
High-Performance CLASSiC DAC; Pt.3 SC 01102131/01102132/01102133 April 2013
Nicholas Vinen; Notes/errata: August & September 2013
DC-DC Converter For the CLASSiC-D Amplifier SC 11104131 May 2013
John Clarke
High-Performance CLASSiC DAC; Pt.4 SC 01102131/01102132/01102133 May 2013
Nicholas Vinen; Notes/errata: August & September 2013
A "Lump-In-The-Coax" Mini Audio Mixer SC 01106131 June 2013
Nicholas Vinen & Ross Tester
DIY Wireless Audio Streaming July 2013
Nicholas Vinen
"Tiny Tim" Horn-Loaded Speaker System October 2013
Allan Linton-Smith & Ross Tester
"Tiny Tim" 10W/Channel Stereo Amplifier, Pt.1 SC 01309111 October 2013
Nicholas Vinen & Leo Simpson
Dual-Channel Audio Delay For PA Systems SC 01110131 November 2013
Nicholas Vinen
SiDRADIO: Integrated SDR With DVB-T Dongle, Pt.2 SC 06109131/06109132/06109133 November 2013
Jim Rowe
PortaPAL-D: A Powerful, Portable PA System, Pt.1 SC 01111131/01111132/01111133 December 2013
John Clarke
"Tiny Tim" 10W/Channel Stereo Amplifier, Pt.2 SC 01309111/18110131 December 2013
Leo Simpson & Nicholas Vinen
Bass Extender Mk2 For HiFi Systems SC 01112131 January 2014
Nicholas Vinen
PortaPAL-D: A Powerful, Portable PA System, Pt.2 SC 01111131/01111132/01111133 January 2014
John Clarke
"Tiny Tim" 10W/Channel Stereo Amplifier, Pt.3 January 2014
Nicholas Vinen & Leo Simpson
Stereo Echo & Reverberation Unit SC 01110131 February 2014
Nicholas Vinen
Build A State-of-the-Art Mini Entertainment Unit SC 18112111 February 2014
Leo Simpson
PortaPAL-D: A Powerful, Portable PA System, Pt.3 SC 01111131/01111132/01111133 February 2014
John Clarke
The Majestic Loudspeaker System SC 01205141 June 2014
Allan Linton-Smith
2-Way Passive Loudspeaker Crossover Network SC 01205141 June 2014
Nicholas Vinen
Touch-Screen Digital Audio Recorder, Pt.1 SC 01105141 June 2014
Andrew Levido; Kit(s): Altronics K5530
Touch-Screen Digital Audio Recorder, Pt.2 SC 01105141 July 2014
Andrew Levido; Kit(s): Altronics K5530
Nirvana Valve Sound Simulator SC 01106141/01106142 August 2014
John Clarke
Mini-D Stereo 10W/Channel Class-D Audio Amplifier SC 01110141 September 2014
Nicholas Vinen; Kit(s): Jaycar KC5530
An Improved Tweeter Horn For The Majestic Loudspeaker September 2014
Allan Linton-Smith & Leo Simpson
Currawong Stereo Valve Amplifier: A Preview SC 01111141/2/3/4 October 2014
Leo Simpson & Nicholas Vinen; Kit(s): Altronics K5528, K5529
Passive Direct Injection (DI) Box SC 23111141 October 2014
John Clarke
Currawong 2 x 10W Stereo Valve Amplifier, Pt.1 SC 01111141/2/3/4 November 2014
Nicholas Vinen; Kit(s): Altronics K5528, K5529
One-Chip 2 x 5W Mini Stereo Amplifier SC 01109141 November 2014
Nicholas Vinen
Currawong 2 x 10W Stereo Valve Amplifier, Pt.2 SC 01111141/2/3/4 December 2014
Nicholas Vinen; Kit(s): Altronics K5528, K5529
The Currawong 2 x 10W Stereo Valve Amplifier, Pt.3 SC 01111141/2/3/4 January 2015
Nicholas Vinen; Kit(s): Altronics K5528, K5529
Build A Low-Frequency Distortion Analyser SC 04104151 April 2015
Nicholas Vinen
Audio Signal Injector & Tracer 04106151/3 June 2015
John Clarke; Kit(s): Altronics K2547 (discontinued)
The Multi-Role Champion Preamplifier SC 01109121 June 2015
Leo Simpson; Kit(s): Jaycar KC5531
Ultra-LD Mk.4 200W RMS Power Amplifier: Preview SC 01107151 July 2015
Nicholas Vinen
Ultra-LD Mk.4 200W RMS Power Amplifier, Pt.1 SC 01107151 August 2015
Nicholas Vinen
Senator: 10-Inch Bass Reflex Loudspeakers SC 01205141 September 2015
Design by Allan Linton-Smith, words by Leo Simpson
Ultra-LD Mk.4 200W RMS Power Amplifier, Pt.2 SC 01107151 September 2015
Nicholas Vinen
Ultra-LD Mk.4 Power Amplifier, Pt.3: 110W Version SC 01107151 October 2015
Nicholas Vinen
2-Way Crossover For Senator 10-Inch Loudspeakers SC 01205141 October 2015
Leo Simpson
A Universal Loudspeaker Protector 01110151 November 2015
Nicholas Vinen
Valve Stereo Preamplifier For HiFi Systems SC 01101161 January 2016
Nicholas Vinen; Kit(s): Altronics K5192
Valve Stereo Preamplifier For HiFi Systems, Pt.2 SC 01101161 February 2016
Nicholas Vinen; Kit(s): Altronics K5192
Budget Senator 2-Way Loudspeaker System SC 01205141 May 2016
Allan Linton-Smith
230/115VAC, 50/60Hz Precision Turntable Driver SC 04104161 May 2016
John Clarke
Stereo Audio Level/VU Meter: Add Bling To HiFi System SC 01104161 June 2016
Nicholas Vinen
Budget Senator 2-Way Loudspeaker System, Pt.2 SC 01205141 June 2016
Allan Linton-Smith
Stereo LED Audio Level/VU Meter, Pt.2 SC 01104161 July 2016
Nicholas Vinen
A New Transformer For The Currawong Valve Amplifier; Kit(s): Altronics MA5399 October 2016
Leo Simpson
Passive Line To Phono Input Converter 01111161 November 2016
Nicholas Vinen & Bao Smith
Voltage/Current Reference With Touchscreen, Pt.2 SC 04110161 December 2016
Nicholas Vinen; Kit(s): SILICON CHIP short form kit
New SC200 Audio Amplifier SC 01108161, 01109111 January 2017
Nicholas Vinen & Leo Simpson; Kit(s): Altronics K5157
New SC200 Audio Amplifier – Part 2 SC 01108161, 01109111 February 2017
Nicholas Vinen; Kit(s): Altronics K5157
New SC200 Audio Amplifier - Part 3 SC 01108161, 01109111 March 2017
Nicholas Vinen; Kit(s): Altronics K5157
New Spring Reverberation Unit SC 01104171 April 2017
Nicholas Vinen
All-new 10-Octave Stereo Graphic Equaliser, Part 1 SC 01105171/2 June 2017
John Clarke
We put the VS1053 Arduino shield to work; Kit(s): SC4315 July 2017
Bao Smith
Completing our new Graphic Equaliser SC 01105171/2 July 2017
John Clarke
Fully adjustable, 3-way active loudspeaker crossover Pt.1 SC 01108171/2/3 September 2017
John Clarke
3-way Active Crossover for speakers, Part 2 SC 01108171 October 2017
John Clarke
Dipole Loudspeaker System November 2017
Allan Linton-Smith
Build your own Super-7 AM Radio Receiver – Part 2 SC 06111171 December 2017
John Clarke; Notes/errata: December 2017; Kit(s): SC4473
The Arduino Mega Box Music Player revisited February 2018
Kit(s): Altronics K9670 (Mega Box)
Bao Smith
Dipole guitar/PA speaker without a box! September 2018
Allan-Linton Smith
Digital white noise generator September 2018
John Clarke
Super sound effects module – Part 2 SC 01107181 September 2018
Tim Blythman & Nicholas Vinen
Insomnia and Tinnitus killer SC 01110181/2 November 2018
John Clarke; Kit(s): SC4792
Ultra low noise remote controlled stereo preamp, Pt.1 SC 01111119, 01111112/3 March 2019
John Clarke; Kit(s): Altronics K5171/K5172
Our new DAB+ Tuner with FM and AM – Part 3 SC 06112181 March 2019
Duraid Madina & Tim Blythman; Kit(s): SC3834 & SC4904 & SC4896/7
Ultra low noise remote controlled stereo preamp – Part 2 April 2019
SC 01111119, 01111112/3
John Clarke; Kit(s): Altronics K5171/K5172
DSP Active Crossover and 8-channel Parametric Equaliser SC 01106191-6 May 2019
Phil Prosser and Nicholas Vinen
Bridge adaptor gives four times your amplifier power! SC 01105191 May 2019
Nicholas Vinen
Very accurate speedo, car clock & auto volume change SC 01104191 June 2019
Tim Blythman
DSP Active Crossover and 8-channel Parametric Equaliser, part two June 2019
SC 01106191-6
Phil Prosser & Nicholas Vinen; Kit(s): SC5023
DSP Active Crossover and 8-channel Parametric Equaliser SC 01106191-6 July 2019
Phil Prosser & Nicholas Vinen; Kit(s): SC5023
“HEY! THE SIGN SAYS NO JUNK MAIL!” August 2019
Allan Linton-Smith
Six-way Stereo Audio Input Selector with remote control SC 01110191/01110192 September 2019
John Clarke; Kit(s): Altronics K5172
The Super-9: a stereo FM Radio Receiver to build SC06109181/2/3/4/5 November 2019
John Clarke
The Super-9 FM Radio Receiver, Part 2 SC06109181/2/3/4/5 December 2019
John Clarke
A low-voltage valve audio preamp SC 01112191 January 2020
John Clarke; Kit(s): Altronics kit K5192 (discontinued)
Easy-to-build Bookshelf Speaker System SC 01101201/2 January 2020
Phil Prosser; Kit(s): Altronics kit TBA
Building the new “bookshelf” stereo speakers, Pt 2 SC 01101201/2 February 2020
Phil Prosser; Kit(s): Altronics kit TBA
Building Subwoofers for our new “Bookshelf” Speakers SC 01101201/2 March 2020
Phil Prosser
Two new 7-band Audio Equalisers for hifi, PA and more! SC 01104201/2 April 2020
John Clarke; Kit(s): Altronics kit TBA
Dead easy “Concreto” loudspeakers June 2020
Allan Linton-Smith
USB SuperCodec SC 01106201 August 2020
Phil Prosser
A shirt-pocket Sized Audio DDS Oscillator SC 01110201/2 September 2020
Andrew Woodfield; Kit(s): SC5622
USB SuperCodec – part two SC 01106201 September 2020
Phil Prosser
USB SuperCodec – part three SC 01106201 October 2020
Phil Prosser
Balanced Input Attenuator for the USB SuperCodec 01106202 November 2020
Phil Prosser
Power Supply for Battery-Powered Vintage Radios 11111201 December 2020
Ken Kranz & Nicholas Vinen
Balanced Input Attenuator for the USB SuperCodec, Part 2 01106202 December 2020
Phil Prosser
AM/FM/SW Single-Chip Digital Radio CSE200902A January 2021
Charles Kosina
The Bass Block Subwoofer January 2021
Nicholas Dunand
Touchscreen Digital Preamp with Tone Control – Part 1 SC 01103191/2 September 2021
Nicholas Vinen & Tim Blythman
Tapped Horn Subwoofer September 2021
Phil Prosser
Two- or Three-Way Stereo Active Crossover – Part 1 SC 01109211 October 2021
Phil Prosser
Touchscreen Digital Preamp with Tone Control – Part 2 SC 01103191/2 October 2021
Nicholas Vinen & Tim Blythman
Two- or Three-Way Stereo Active Crossover – Part 2 SC 01109211 November 2021
Phil Prosser
Hummingbird Audio Amplifier SC 01111211 December 2021
Phil Prosser; Kit(s): Altronics K5158
Multi-Channel Speaker Protector SC 01101221 January 2022
Phil Prosser
Fan Controller & Loudspeaker Protector SC 01111211 February 2022
John Clarke
Amplifier Clipping Indicator SC 01112211 March 2022
John Clarke; Kit(s): Amplifier Clipping Indicator
500W Power Amplifier, Part 1 SC 01107021 April 2022
John Clarke; Kit(s): SC6019
500W Power Amplifier, Part 2 SC 01107021 May 2022
John Clarke; Kit(s): SC6019
Spectral Sound MIDI Synthesiser SC 01106221 June 2022
Jeremy Leach; Kit(s): SC6261
500W Power Amplifier, Part 3 SC 01107021 June 2022
John Clarke; Kit(s): SC6019
isoundBar with Built-in Woofer August 2022
Allan Linton-Smith
Active Monitor Speakers, Part 1 November 2022
Phil Prosser
Active Monitor Speakers, Part 2 SC 01112221 December 2022
Phil Prosser
Active Subwoofer, Part 1 January 2023
Phil Prosser
Active Subwoofer, Part 2 February 2023
Phil Prosser
The Digital Potentiometer SC 01101231/2 March 2023
Phil Prosser; Kit(s): SC6623/4
Loudspeaker Testing Jig SC 04106231 June 2023
Phil Prosser
Calibrated Measurement Mic SC 01108231-2 August 2023
Phil Prosser; Kit(s): SC6755/6, SC6760-5
Salad Bowl Speakers SC 01109231 September 2023
Phil Prosser
1kW+ Class-D Amplifier, Pt1 October 2023
Allan Linton-Smith
1kW+ Class-D Amplifier, Pt2 November 2023
Allan Linton-Smith
Multi-Channel Volume Control, Pt1 SC 01111221-3 December 2023
Tim Blythman
Multi-Channel Volume Control Part 2 SC 01111221-3 January 2024
Tim Blythman
Microphone Preamplifier SC 01110231/2 February 2024
Phil Prosser; Kit(s): SC6784
Laser Communicator SC 16102241/2 March 2024
Phil Prosser & Zak Wallingford
Reference MEMS Microphones SC 01108231-2 April 2024
Phil Prosser
Workman 1kW Loudspeaker SC 01205141 July 2024
Allan Linton-Smith
Surf Sound Simulator SC 01111241 November 2024
John Clarke
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02 TV/VIDEO
High-Performance UHF Antenna SC 210188 January 1988
Leo Simpson & Bob Flynn
Booster for TV & FM Signals OE12 & SC 0210788 July 1988
Branco Justic
The Gladesville GaAsFet Amplifier October 1989
'Big Julie' Kentwell, VK2XBR
Remote Control Extender For VCRs SC 15108901 September 1990
John Clarke & Greg Swain; Notes/errata: March 1991
A Corner Reflector Antenna For UHF TV SC 02106911 June 1991
Bob Flynn & Leo Simpson
Masthead Amplifier For TV & FM SC 02107911 August 1991
John Clarke & Greg Swain
Build A Colour TV Pattern Generator, Pt.1 SC 02210911 November 1991
John Clarke; See Replacement Circuit For TEA2000: March 1997
Kit(s): Altronics, DSE, Jaycar
TV Transmitter For UHF VCRs SC 02212911 December 1991
John Clarke
Build A Colour TV Pattern Generator, Pt.2 SC 02210911 December 1991
John Clarke; See Replacement Circuit For TEA2000: March 1997
Kit(s): Altronics, DSE, Jaycar
TV Transmitter For VHF VCRs SC 02212911/02204921 March 1992
John Clarke; Notes/errata: May 1992
Video Switcher For Camcorders & VCRs SC 02206921 June 1992
John Clarke; Notes/errata: July 1992, September 1992
Low-Cost Audio Mixer For Camcorders SC 01112921 March 1993
Darren Yates; Notes/errata: April 1993
Low-Cost Colour Video Fader SC 02107931 August 1993
Darren & Gary Yates; Notes/errata: September 1993; Kit(s): DSE
Intelligent IR Remote Controller IRJ201 March 1994
Ben Douchkov; Kit(s): Benetron
Remote Control Extender For VCRs SC 15303941 April 1994
John Clarke; Notes/errata: June 1994; Kit(s): Altronics, Jaycar
Multi-Channel Infrared Remote Control SC 15105941/15105942 May 1994
Brian Roberts; Notes/errata: March 1995
Build A 4-Bay Bow-Tie UHF Antenna July 1994
Leo Simpson & Bob Flynn; Notes/errata: September 1994
Dolby Pro-Logic Surround Sound Decoder; Pt.1 SC 02311941 December 1994
John Clarke; Kit(s): Jaycar
Dolby Pro-Logic Surround Sound Decoder; Pt.2 SC 02311941 January 1995
John Clarke; Kit(s): Jaycar
Build A Satellite TV Receiver; Pt.2 SC 02305951 June 1995
John Clarke; Kit(s): Av-Comm
A Low-Cost Video Security System; Kit(s): Oatley Electronics June 1995
Leo Simpson
Satellite TV Receiver; Pt.3: Setting Up A Ground Station SC 02305951 July 1995
Garry Cratt; Kit(s): Av-Comm
Dolby Pro Logic Surround Sound Decoder, Mk.2 November 1995
SC 01409951/01409952/01409953/01409954/01409955
John Clarke; Notes/errata: January 1996, February 1996; Kit(s): Jaycar exclusive
Dolby Pro Logic Surround Sound Decoder, Mk.2; Pt.2 December 1995
SC 01409951/01409952/01409953/01409954/01409955
John Clarke; Notes/errata: January 1996, February 1996; Kit(s): Jaycar exclusive
Surround Sound Mixer & Decoder; Pt.1 SC 02302961/02302962/02302963 January 1996
John Clarke
Surround Sound Mixer & Decoder; Pt.2 SC 02302961/02302962/02302963 February 1996
John Clarke
A High-Performance Stereo Simulator SC 01406961 June 1996
John Clarke; Notes/errata: September 1996; Kit(s): Altronics K5950
Remote Control Extender For VCRs SC 15107961 July 1996
Rick Walters; Notes/errata: September 2002; Kit(s): Jaycar KC5209
Portable Masthead Amplifier For TV & FM; Kit(s): Oatley Electronics August 1996
Branco Justic
Send Video Signals Over Twister Pair Cable October 1996
SC 0230696102306962/02306963/02306964
John Clarke; Notes/errata: December 1996; Kit(s): Altronics, Jaycar
RGB-To-PAL Encoder For The TV Pattern Generator SC 02302971 March 1997
John Clarke
Build A TV Picture-In-Picture (PIP) Unit SC 02302971 April 1997
John Clarke; Kit(s): Oatley Electronics
A Teletext Decoder For Your PC; Kit(s): Current Dynamics May 1997
Chris Schach & Braden Phillips
NTSC-PAL Converter SC 02303971 May 1997
John Clarke; Kit(s): Jaycar KC5223
Colour TV Pattern Generator; Pt.1 SC 02305971 June 1997
John Clarke; Notes/errata: October 1997
Kit(s): Altronics K2715, DSE K7380, Jaycar KC5224
Colour TV Pattern Generator; Pt.2 SC 02305971 July 1997
John Clarke; Notes/errata: October 1997
Kit(s): Altronics K2715, DSE K7380, Jaycar KC5224
A Video Security System For Your Home; Kit(s): Oatley Electronics September 1997
Branco Justic
Pan Controller For CCD Video Cameras; Kit(s): Oatley Electronics January 1998
Branco Justic
An Audio-Video Transmitter SC 02405991 July 1999
John Clarke; Notes/errata: September 1999, February 2001
Kit(s): Altronics K5865, Jaycar KC5272
An Audio-Video Test Generator SC 04101001 January 2000
Leon Williams; Kit(s): Altronics K2718, DSE, Jaycar
A Home Satellite TV System; Kit(s): Av-Comm (no longer available) July 2000
Garry Cratt & Ross Tester
I Spy With My Little Eye Cavity Camera; Kit(s): Oatley Electronics October 2000
Ross Tester
2-Metre Elevated Groundplane Antenna February 2001
Philip Watson
Dr Video: An Easy-To-Build Video Stabiliser SC 02104011 April 2001
Jim Rowe; Kit(s): Jaycar
Li'l Snooper: A Low Cost Camera Switcher SC 02106011 June 2001
Jim Rowe; Kit(s): Altronics K5842, Jaycar
A Video Microscope From Scrounged Parts October 2001
Peter Rosenthal & Ross Tester
A Low-Cost Audio/Video Distribution Amplifier SC 02111011 November 2001
Jim Rowe; Notes/errata: December 2001, April 2002, June 2002
Kit(s): Jaycar KC5320
A 2.4GHz High-Power Audio-Video Link; Kit(s): Oatley Electronics February 2002
Ross Tester
Video-Audio Booster For Home Theatre Systems SC 02104031, EPE 558 April 2003
Jim Rowe; Kit(s): Jaycar KC5350/KC5351
2.4GHz Audio/Video Link; Kit(s): Oatley Electronics January 2004
Ross Tester
Component Video To RGB Converter SC 02104051 May 2004
Jim Rowe; See also Circuit Notebook August 2004 & August 2005
Kit(s): Jaycar KC5388
Dr Video Mk.2: An Even Better Video Stabiliser SC 02106041 June 2004
Jim Rowe; See also Circuit Notebook July 2004 & July 2005
Kit(s): Jaycar KC5390
Video Enhancer & Y/C Separator SC 02108041 August 2004
Jim Rowe; Kit(s): Jaycar KC5394
RGB To Component Video Converter SC 07209041, EPE 596 October 2004
Jim Rowe; Notes/errata: February 2005; Kit(s): Jaycar KC5398
Video Reading Aid For Vision Impaired People SC 02110051, EPE 624 October 2005
Jim Rowe
4-Channel Audio/Video Selector SC 02104061, EPE 676 April 2006
Jim Rowe
Pocket A/V Test Pattern Generator; Kit(s): Altronics K2725 (discontinued) June 2006
Mick Gergos
Build A 2.4GHz Wireless A/V Link; Kit(s): Oatley Electronics K229 June 2006
Ross Tester
S-Video To Composite Video Converter SC 02109061, EPE 684 September 2006
Jim Rowe
Infrared Remote Control Extender SC 02110061 October 2006
John Clarke; See also Circuit Notebook July 2010
Kit(s): Jaycar KC5432
Infrared Audio Headphone Link For TV SC 01112071/01112072, EPE 708/709 December 2007
Jim Rowe
A Speed Controller For Film Projectors SC 13104111 April 2011
John Clarke
CGA-To-VGA Video Converter 21-01101-01 February 2015
Ewan Wordsworth ; Kit(s): Microbee Technology (www.microbeetechnology.com.au)
6-Element VHF TV Yagi to kill UHF 4G interference February 2018
Leo Simpson
Analog Audio/Video Modulator for Vintage TV sets SC 02104181 March 2018
Ian Robertson
----------------------------------------------------------------------------------------------
03 SECURITY, BURGLAR ALARMS, SAFETY, ETC
Passive Infrared Movement Detector December 1987
Branco Justic; Notes/errata: June 1988
Protector Car Burglar Alarm SC 3-1-0188 February 1988
John Clarke; Notes/errata: August 1988
Build the Door Minder SC 03-2-188 February 1988
Leo Simpson & John Clarke; See also Circuit Notebook April 1989
Remote Switch For Car Burglar Alarms SC 03-1-288-3 March 1988
John Clarke; Notes/errata: June, July, August, September, October 1988
Ultrasonic Car Burglar Alarm OE102 May 1988
Branco Justic
Automatic Light Controller June 1988
Branco Justic
Fit a Fuel Cut-Off Solenoid to Your Car July 1988
Greg Swain
Remote Controlled Chimes Unit SC 0312882 August 1988
John Clarke & Greg Swain; Notes/errata: September, October 1988
The LED-Light House Number SC 03-1-0988-1 October 1988
John Clarke & Leo Simpson
Build a Car Safety Light SC 05-1-1088-1 November 1988
John Clarke; See also Circuit Notebook February 1989
Ultrasonic Proximity Detector for Cars SC 05102891 January 1989
John Clarke & Greg Swain; Notes/errata: March 1989
Flasher Circuit For Auxiliary Brake Lights SC 05104891 April 1989
Bob Flynn & Greg Swain; See Ask SC Dec 89 for 6V modification
Exhaust Gas Monitor For Cars & Vans SC 05107891 July 1989
Bob Flynn & Leo Simpson
Compact Ultrasonic Car Burglar Alarm; Kit(s): Oatley July 1989
Greg Swain; Notes/errata: October 1989
Alarm-Triggered Telephone Dialler ZA-1430 September 1989
Greg Swain; Notes/errata: March 1990; Kit(s): DSE
Easy To Build UHF Remote Switch ZA-1518 December 1989
Greg Swain; Notes/errata: January 1994; Kit(s): DSE
Multi-Sector Home Burglar Alarm ZA-1452/ZA-1453 June 1990
Greg Swain; Kit(s): DSE K8400/K8401
A Speed Alarm For Your Car PGOSA 10/89 June 1990
Peter Gray; Kit(s): Novocastrian Electronics
Alarm Keypad & Combination Lock ZA-1450 / ZA-1451 July 1990
Greg Swain; Kit(s): DSE K8403
Low Cost Siren For Burglar Alarms; Kit(s): Oatley Electronics October 1990
Leo Simpson
Versatile 4-Digit Combination Lock; Kit(s): Altronics K1925 December 1990
Gary Ioppolo
Build A Two-Tone Alarm Module SC 08111901 January 1991
Darren Yates; Kit(s): Jaycar
Ultrasonic Switch For Mains Appliances ACT ONE September 1991
Jeff Monegal; Kit(s): CTOAN Electronics
Flashing Alarm Light For Cars; Kit(s): DSE November 1991
Syd McKitrick
Build An Infrared Light Beam Relay SC 03112911 December 1991
Darren Yates; Notes/errata: March 1992, September 1992; Kit(s): Jaycar
A Low-Cost Electronic Doorbell SC 03106921 May 1992
Darren Yates
A Multi-Sector Home Burglar Alarm; Pt.1; Kit(s): Mike Zenere September 1992
Mike Zenere
A Multi-Sector Home Burglar Alarm; Pt.2; Kit(s): Mike Zenere October 1992
Mike Zenere
An Infrared Night Viewer; Kit(s): Oatley Electronics November 1992
Branko Justic
An Easy-To-Build UHF Remote Switch; Kit(s): Oatley Electronics December 1992
Greg Swain
A Low Fuel Indicator For Your Car SC 05203931 February 1993
John Clarke & Greg Swain; Kit(s): DSE
An Alarm-Triggered Security Camera SC 03103931/03103932 March 1993
Tony Nixon
A Solar-Powered Electric Fence; Kit(s): Oatley Electronics April 1993
Branco Justic; Notes/errata: January 1994
Build The Woofer Stopper SC 03105931 May 1993
Darren Yates; Notes/errata: June 1993
Remote Control For The Woofer Stopper SC 03105932 June 1993
Darren Yates; Kit(s): Oatley Electronics
Light Beam Relay Extender SC 03106931 July 1993
Darren Yates
UHF Radio Alarm Pager OE93/PAGER November 1994
Branco Justic; Kit(s): Oatley Electronics
An Easy-To-Build Car Burglar Alarm ZA1287 December 1994
Bernie Gilchrist; Kit(s): DSE K4312/K4314
A Dual Channel UHF Remote Control ZA1307 January 1995
Bernie Gilchrist; Kit(s): DSE K3260
IR Illuminator For CCD Cameras & Night Viewers; Kit(s): Oatley Electronics March 1995
Branco Justic
A Low-Cost Video Security System; Kit(s): Oatley Electronics June 1995
Leo Simpson
Build A Reliable Door Minder SC 03107951 July 1995
Rick Walters; Kit(s): Jaycar
Build A 6-12V Alarm Screamer Module; Kit(s): DIY Electronics Kit 15 August 1995
Leo Simpson
Build A Keypad Combination Lock; Kit(s): Oatley Electronics September 1995
Jeff Monegal
Build A Low-Cost PIR Movement Detector; Kit(s): Oatley Electronics November 1995
Conrad Marder
Build An Engine Immobiliser For Your Car SC 05310951 December 1995
John Clarke; Notes/errata: December 1996; Kit(s): Altronics, Jaycar
Build A Magnetic Card Reader & Display; Kit(s): Mike Zenere January 1996
Mike Zenere
Fit A Kill Switch To Your Smoke Detector; Kit(s): BS170 from Farnell February 1996
Rick Walters
Low Cost Multi-Tone Dashboard Alarm February 1996
Julian Edgar
Woofer Stopper Mk 2 - Now It's Even Better! SC 03102961 February 1996
John Clarke; Notes/errata: December 1996; Kit(s): DSE, Jaycar
Control Panel For Multiple Smoke Alarms; Pt.1 SC 03312961/03312962/03312963 January 1997
John Clarke; Notes/errata: February 1997, April 1997
Kit(s): DSE K8000/8001, Jaycar
Control Panel For Multiple Smoke Alarms; Pt.2 SC 03312961/03312962/03312963 February 1997
John Clarke; Notes/errata: April 1997; Kit(s): DSE K8000/8001, Jaycar
A Video Security System For Your Home; Kit(s): Oatley Electronics September 1997
Branco Justic
Add Central Locking To Your Car; Kit(s): Oatley Electronics October 1997
Leo Simpson
An Automatic Garage Door Opener; Pt.1 SC 05104981/05104982 April 1998
Rick Walters
An Automatic Garage Door Opener; Pt.2 SC 05104981/05104982 May 1998
Rick Walters
A Blocked Air Filter Alarm September 1998
Adrian Cuesta
Engine Immobiliser Mk.2 SC 05412981 December 1998
John Clarke; Kit(s): DSE, Jaycar KC5255
Keypad Engine Immobiliser SC 05401991 January 1999
John Clarke; Kit(s): DSE, Jaycar KC5257
High-Power Electric Fence Controller SC 11303991 April 1999
John Clarke; Notes/errata: May 1999; Kit(s): Altronics, DSE
Build An Infrared Sentry; Kit(s): Oatley Electronics April 1999
Branco Justic & Ross Tester
Three Electric Fence Testers SC 11303992/11303993/11303994 May 1999
John Clarke; Kit(s): DSE, Jaycar
Build A Carbon Monoxide Alarm SC 05303991 May 1999
John Clarke
Make Your Burglar Alarm System More Versatile June 1999
Max Maughan; Notes/errata: September 1999
Build The Dog Silencer; Kit(s): Oatley Electronics (discontinued) July 1999
Branco Justic
Build A Safety Switch Checker; Kit(s): Altronics, Jaycar February 2000
John Clarke
RoomGuard: A Low-Cost Intruder Alarm SC 03303001 April 2000
John Clarke; Notes/errata: July 2000
Build A Swimming Pool Alarm SC 03109001 September 2000
John Clarke; Kit(s): Jaycar KC5298
Booze Buster Breath Tester; Kit(s): Oatley Electronics October 2000
Ross Tester
Li'l Snooper: A Low Cost Camera Switcher SC 02106011 June 2001
Jim Rowe; Kit(s): Altronics K5842, Jaycar
Super-Sensitive Body Detector SC 03110011 October 2001
Thomas Scarborough
A Cheap 'n' Easy Motorbike Alarm SC 05101021 January 2002
Mick Gergos; Notes/errata: February 2002
Build A Raucous Alarm SC 03102021 January 2002
Thomas Scarborough; Kit(s): Jaycar KC5327
Driving Light & Accessory Protector For Cars SC 03109021 September 2002
Rick Walters; Kit(s): Jaycar KC5337
A Highly-Flexible Keypad Alarm SC 03104031, EPE 552 April 2003
John Clarke; Kit(s): Altronics K1930, DSE K4305, Jaycar KC5352
Telephone Dialler For Burglar Alarms SC 03204031, EPE 579 April 2003
Leon Williams; Kit(s): Altronics K6230, Jaycar KC5348
Shut That Mutt; Kit(s): Oatley Electronics K112a April 2004
Branko Justic; Notes/errata: July 2004
An RFID Security Module SC 03106041, EPE 628 June 2004
Peter Smith; Notes/errata: July 2004, August 2006
Kit(s): Altronics K9300, DSE K7215, Jaycar KC5393
Fridge-Door Open Alarm SC 03206041, EPE 587 June 2004
John Clarke; Kit(s): DSE K7216
The Driveway Sentry SC DRIVSENT November 2004
Jim Rowe; Kit(s): Jaycar KC5402
Carbon Monoxide Alert SC 05108051 August 2005
John Clarke; Notes/errata: September 2005; Kit(s): K4614
Bilge Sniffer SC 05109051 September 2005
John Clarke; Kit(s): DSE K4615
Remote LED Annunciator For Queue Control SC 03112051/03112052 December 2005
Jim Rowe; Kit(s): Jaycar KC5420
PC-Controlled Burglar Alarm System SC 03102061/03102062/07203061, EPE 666-668 February 2006
Trent Jackson; Notes/errata: April 2006
PC-Controlled Burglar Alarm System, Pt.2 March 2006
SC 03102061/03102062/07203061, EPE 666-668
Trent Jackson; Notes/errata: April 2006
Aquarium Temperature Alarm; Kit(s): SC 03109061 September 2006
Peter Smith
A Remote Telltale For Garage Doors SC 03101071/03101072 January 2007
Jim Rowe
Rolling Code Security System; Pt.1 SC 01510071/01510072, EPE 721/722 October 2007
John Clarke; Notes/errata: September 2008; Kit(s): Altronics K1940 Jaycar KC5458
Rolling Code Security System; Pt.2 SC 01510071/01510072, EPE 721/722 November 2007
John Clarke; Notes/errata: September 2008; Kit(s): Altronics K1940 Jaycar KC5458
PIC-Controlled Swimming Pool Alarm SC 03101081, EPE 762 January 2008
John Clarke
A PIR-Triggered Mains Switch EPE 798 February 2008
Jim Rowe; Notes/errata: March 2008; Kit(s): Jaycar KC5455
A Solar-Powered Intruder Alarm For Sheds & Boats SC 03103101, EPE 837 March 2010
John Clarke; Kit(s): Altronics K6026 Jaycar KC5494
An RFID Security System; Kit(s): Altronics K291 November 2010
Jeff Monegal
The Driveway Sentry Mk.2 SC 03107121 August 2012
Jim Rowe
The Nick-Off Bad Cat Deterrent SC 03110121 October 2012
Greg Swain and Nicholar Vinen
Alscolyser: For Accurate Alcohol Analysis November 2013
Allan Linton-Smith
Arduino-Based GSM Remote Monitoring Station March 2014
Nicholas Vinen
Appliance Earth Leakage Tester 04203151/2/3 May 2015
John Clarke
Open Doors With This Fingerprint Access Controller 03109151/2 November 2015
John Clarke; Kit(s): Altronics K9350
Fridge/Freezer Alarm SC 03102161 April 2016
John Clarke
Arduino-Based Cooling System Monitor June 2016
Nicholas Vinen
Hotel Safe Alarm For Travellers SC 03106161 June 2016
John Clarke
Universal -33°C to 125°C Temperature Alarm SC 03105161 July 2016
John Clarke; Kit(s): Altronics K1137
WiFi Controlled Switch Using A Raspberry Pi & Smartphone November 2016
Greg Swain & Nicholas Vinen
Arduino-based Earthquake Early Warning Alarm March 2018
Allan Linton-Smith and Nicholas Vinen
Bedroom (or any room!) no-connection door alarm 03107181 August 2018
John Clarke
JMP007 - Ultrasonic Garage Door Notifier August 2024
Tim Blythman
----------------------------------------------------------------------------------------------
04 TEST & MEASUREMENT
Capacitance Adaptor for Your DMM SC 041-1287 November 1987
John Clarke & Greg Swain; Notes/errata: March 1988
1GHz Digital Frequency Meter SC 1187-1/2/3 November 1987
Steve Payor; See also Circuit Notebook September 1990
1GHz Digital Frequency Meter, Pt.2 SC 04111871/2/3 December 1987
Steve Payor; See also Circuit Notebook September 1990
Dual Tracking ±18.5V Power Supply SC 041-188 January 1988
John Clarke & Leo Simpson; Kit(s): Altronics
1GHz Digital Frequency Meter, Pt.3 SC 04111871/2/3 January 1988
Steve Payor; See also Circuit Notebook September 1990
Low Ohms Adaptor for Multimeters SC 4-1-388 February 1988
John Clarke; Notes/errata: November 1988
Technilab 301 Function Generator Technilab 301 March 1988
David Whitby
A pH Meter For Swimming Pools SC 4-2-488 April 1988
John Clarke & Leo Simpson
Optical Tachometer for Aeromodellers SC 4-1-688 May 1988
John Clarke & Greg Swain; Notes/errata: August 1988; Kit(s): Jaycar
Tone Burst Source for Amplifier Testing SC 4-1-488 July 1988
Leo Simpson & John Clarke
High Performance AC Millivoltmeter 0410881 & 04106881 August 1988
Bob Flynn & Leo Simpson; See also Ask SC September 1996
Universal Power Supply Board 04106881 August 1988
Leo Simpson; Notes/errata: November 2004
Kit(s): Altronics K3215, DSE, Jaycar KC5038
High Performance AC Millivoltmeter September 1988
Bob Flynn & Leo Simpson; See also Ask SC September 1996
Transistor Beta Tester SC 04102891 February 1989
Malcolm Young
Experimental Mains Hum Sniffers SC 04105891 July 1989
Steve Payor
Low-Capacitance Scope Probe August 1989
Herb Friedman
High Or Low Level Fluid Detector September 1989
Peter Gray
Build A Low Cost Analog Multimeter November 1989
Leo Simpson
A High Quality Audio Oscillator 04101901/2 January 1990
Leo Simpson
A High Quality Audio Oscillator, Pt.2 February 1990
Leo Simpson
Relative Field Strength Meter 04103901 April 1990
Ralph Holland
Dual Tracking ± 50V Power Supply SC 04104901 April 1990
John Clarke & Greg Swain; Notes/errata: October 1990
Build A 4-Digit Capacitance Meter SC 04106901/ 04106902 May 1990
John Clarke & Greg Swain
See January 1991 for LCD readout, May 2001 for crystal timebase
Kit(s): DSE K7500
Load Protector For Power Supplies SC 04204901 June 1990
John Clarke & Leo Simpson
Digital Sine/Square Wave Generator; Pt.1 SC 04108901/ 04108902 July 1990
John Clarke; Kit(s): Altronics, DSE K7350
Low Cost Dual Power Supply SC 04107901 July 1990
John Crichton
Digital Sine/Square Wave Generator; Pt.2 SC 04108901/ 04108902 August 1990
John Clarke; Kit(s): Altronics, DSE K7350
Low Cost 3-Digit Counter Module SC 0430990 September 1990
Darren Yates; Notes/errata: October 1990; Kit(s): Jaycar
DC Offset For Digital Multimeters SC 0420990 October 1990
John Clarke
LCD Readout For The Digital Capacitance Meter January 1991
Barry Naujok; Notes/errata: Refer May 199
Build A Low-Cost Sinewave Oscillator SC 04102911 February 1991
Darren Yates
Transistor Beta Tester Mk.2 SC 04103911 March 1991
John Clarke
Error Analyser For CD Players, Pt.1 SC 01405911/01405912/01405913 July 1991
Stephen McBride
Build A Digital Tachometer SC 05108911 August 1991
Darren Yates; Kit(s): Altronics, DSE K3241, Jaycar
Error Analyser For CD Players, Pt.2 SC 01405911/01405912/01405913 August 1991
Stephen McBride
Digital Altimeter For Gliders & Ultralights, Pt.1 September 1991
SC 04108911/04108912/04108913
John Clarke; Notes/errata: January 1992; Kit(s): Altronics
Magnetic Field Strength Meter SC 04211911/04211912 October 1991
John Clarke
Build A Talking Voltmeter For Your PC, Pt.1 SC 07110911 October 1991
Darren Yates; Notes/errata: December 1991
Digital Altimeter For Gliders & Ultralights, Pt.2 October 1991
SC 04108911/04108912/04108913
John Clarke; Notes/errata: January 1992; Kit(s): Altronics
Digital Altimeter For Gliders & Ultralights, Pt.3 November 1991
SC 04108911/04108912/04108913
John Clarke; Notes/errata: January 1992; Kit(s): Altronics
Build A Talking Voltmeter For Your PC, Pt.2 SC 07110911 November 1991
Darren Yates; Notes/errata: December 1991
Error Analyser For CD Players, Pt.3 SC 01405911/01405912/01405913 November 1991
Stephen McBride
Adjustable 0-45V 8A Power Supply, Pt.1 SC 04201921 January 1992
John Clarke; Notes/errata: Refer April 1998 for revised & updated version
Kit(s): Altronics
Adjustable 0-45V 8A Power Supply, Pt.2 SC 04201921 February 1992
John Clarke; Notes/errata: Refer April 1998 for revised & updated version
Kit(s): Altronics
Differential Input Buffer For Oscilloscopes SC 04204921 April 1992
John Clarke
The Eliminator SC 04104921 May 1992
Marque Crozman
Dummy Load Box For Large Audio Amplifiers August 1992
Leo Simpson
A General-Purpose 3 1/2 Digit Panel Meter SC 04110921 September 1992
Darren Yates; Kit(s): DSE
Audio Level / VU Meter With LED Readout ZA-1363 February 1993
Bernie Gilchrist; Kit(s): DSE K5370
A 24-Hour Sidereal Clock For Astronomers SC 04103931 March 1993
Bob Flynn
Build An Audio Power Meter SC 01105931 April 1993
Darren Yates; Kit(s): Altronics, DSE
Three-Function Home Weather Station SC 04201931/04201932 April 1993
John Clarke
A Digital Clock With Battery Back-Up SC SC04101931/SC04101932/SC04101933 April 1993
Darren Yates
A Digital Voltmeter For Your Car SC 04105931/04105932 June 1993
Darren Yates; Notes/errata: July 1996; Kit(s): DSE, Jaycar
Windows-Based Digital Logic Analyser; Pt.1; Kit(s): Jussi Jumppanen June 1993
Jussi Jumppanen
Windows-Based Digital Logic Analyser; Pt.2; Kit(s): Jussi Jumppanen July 1993
Jussi Jumppanen
A Microprocessor-Based Sidereal Clock; Kit(s): John Western August 1993
John Western
An In-Circuit Transistor Tester SC 04109931 September 1993
Darren Yates; Kit(s): DSE, Jaycar
Build A Jumbo Digital Clock SC 04108931 November 1993
Darren Yates
Build A Low-Voltage LED Stroboscope SC 04112931/04112932/04112933 December 1993
Darren Yates
40V 3A Variable Power Supply; Pt.1 SC 04202941 January 1994
John Clarke; Notes/errata: October 1994 ; Kit(s): Altronics K3330
40V 3A Variable Power Supply; Pt.2 SC 04202941 February 1994
John Clarke; Notes/errata: October 1994 ; Kit(s): Altronics K3330
Discrete Dual Supply Voltage Regulator SC 04103941 April 1994
Darren Yates; Notes/errata: September 1994
Build A Digital Water Tank Gauge CE/93/DTG April 1994
Jeff Monegal; Kit(s): CTOAN Electronics (no longer available)
An Induction Balance Metal Locator SC 04305941 May 1994
John Clarke; Notes/errata: June 1994; Kit(s): Altronics, DSE, Jaycar
A PC-Based Nicad Battery Monitor SC 07103941 June 1994
Darren Yates
A Simple Go/No-Go Crystal Checker SC 04106941 August 1994
Darren Yates; Kit(s): Altronics, DSE
Beginner's Dual Rail Variable Power Supply SC 04110941 October 1994
Darren Yates; Kit(s): Altronics, DSE
A 3-Spot Low Distortion Sinewave Oscillator SC 01110941 December 1994
Darren Yates
A 6-Channel Thermometer With LCD Readout; Kit(s): John Western February 1995
John Western
Build A Lightning Distance Meter; Kit(s): SC 08103951 March 1995
Darren Yates
Low-Cost Transistor & Mosfet Tester For DMMs SC 04306951 May 1995
John Clarke; Kit(s): DSE
Build A Digital Multimeter For Only $30; Kit(s): Altronics, DSE K1044 June 1995
Leo Simpson
Audio Lab: A PC-Controlled Audio Test Instrument; Pt.1 August 1995
Kit(s): RSK Electronics
Roger Kent
Audio Lab: A PC-Controlled Audio Test Instrument; Pt.2 September 1995
Kit(s): RSK Electronics
Roger Kent
Build A Compact Geiger Counter SC 04310951 October 1995
John Clarke; Kit(s): Jaycar
Build A Basic Logic Trainer; Kit(s): DSE K3010 exclusive February 1996
Rex Callaghan
A Zener Diode Tester For Your DMM SC 04302961 March 1996
John Clarke; Kit(s): DSE
Build A Simple Battery Tester For Around $5 March 1996
John Clarke
High Voltage Insulation Tester SC 04303961 May 1996
John Clarke; Notes/errata: June 1996; Kit(s): Altronics, DSE, Jaycar
A Low Ohms Tester For Your DMM SC 04305961 June 1996
John Clarke; Kit(s): DSE, Jaycar
Build A VGA Digital Oscilloscope; Pt.1 SC 04307961/04307962/04307963/04307964 July 1996
John Clarke
Minilog: An 8-Bit Single-Channel Data Logger; Kit(s): MicroZed Computers July 1996
Anthony Mott
Build A VGA Digital Oscilloscope; Pt.2 SC 04307961/04307962/04307963/04307964 August 1996
John Clarke
Build A VGA Digital Oscilloscope; Pt.3 SC 04307961/04307962/04307963/04307964 September 1996
John Clarke
Build A Sound Level Meter SC 04312961 December 1996
John Clarke; Kit(s): Altronics, DSE
Build A Pink Noise Source 04312962 January 1997
John Clarke; Notes/errata: January 2001; Kit(s): Altronics, DSE
Computer Controlled Dual Power Supply; Pt.1 SC 04101971/04101972 January 1997
Rick Walters
Digi-Temp Monitors Eight Temperatures; Kit(s): Mantis Micro Products January 1997
Graham Blowes; Notes/errata: April 1997
Computer Controlled Dual Power Supply; Pt.2 SC 04101971/04101972 February 1997
Rick Walters
Build A Low-Cost Analog Multimeter; Kit(s): DSE K1050 February 1997
Leo Simpson
Build A Jumbo LED Clock; Kit(s): SC 04302971/04302972 March 1997
John Clarke
Audible Continuity Tester SC 04103971 March 1997
Rick Walters; Kit(s): Jaycar
A Digital Voltmeter For Your Car SC 04304971/04304972 April 1997
John Clarke
PC-Controlled Thermometer/Thermostat; Kit(s): Softmark June 1997
Mark Roberts; See also November 2000
Build An Audio/RF Signal Tracer SC 04106971 June 1997
Rick Walters; Notes/errata: August 1997; Kit(s): Altronics, DSE, Jaycar
Simple Waveform Generator SC 01307971 July 1997
John Clarke; Kit(s): Jaycar
Build A TENS Unit For Pain Relief SC 04307971 August 1997
John Clarke; Kit(s): DSE K3702 - discontinued
Build A 5-Digit Tachometer SC 04310971/04310972 October 1997
John Clarke; Notes/errata: April 1998, February 2004; Kit(s): Jaycar
PC Controlled 6-Channel Voltmeter SC 07110971 October 1997
Mark Roberts; Kit(s): Softmark
Easy-To-Use Cable & Wiring Tester SC 04411971 November 1997
Leon Williams
Telephone Exchange Simulator For Testing; Kit(s): Mike Zenere February 1998
Mike Zenere
Demonstration Board For Liquid Crystal Displays SC 04102981 February 1998
Rick Walters
PC-Controlled Liquid Crystal Display Board SC 04104981 March 1998
Rick Walters
40V 8A Adjustable Power Supply; Pt.1 SC 04304981 April 1998
John Clarke; Notes/errata: Refer project January/February 1992
Kit(s): Altronics K3365
PC-Controlled 0-30kHz Sinewave Generator; Kit(s): Softmark April 1998
Mark Roberts
Build A 3-LED Logic Probe SC 04104981 May 1998
Rick Walters; Notes/errata: Modified August 2004
Kit(s): Altronics K2586 (modified version), Jaycar
A Detector For Metal Objects SC 04405981 May 1998
John Clarke; Kit(s): Altronics, DSE, Jaycar
40V 8A Adjustable Power Supply; Pt.2 SC 04304981 May 1998
John Clarke; Notes/errata: Refer project January/February 1992
Kit(s): Altronics K3365
The Roadies' Friend Cable Tester; Kit(s): Hoad Electronics June 1998
Paul Hoad
An Automatic Semiconductor Analyser SC 04107981 July 1998
Andy Wood
Simple I/O Card With Automatic Data Logging; Kit(s): Softmark August 1998
Mark Roberts
A Capacity Indicator For Rechargeable Batteries SC 11106961 September 1998
Rick Walters
Lab Quality AC Millivoltmeter; Pt.1 SC 01510981/01510982 October 1998
John Clarke
Lab Quality AC Millivoltmeter; Pt.2 SC 01510981/01510982 November 1998
John Clarke
Thermocouple Adaptor For DMMs SC 04111981 December 1998
Rick Walters; Notes/errata: January 1999; Kit(s): DSE, Jaycar
High Voltage Megohm Tester SC 04301991 January 1999
John Clarke; Kit(s): Altronics, Jaycar
A LED Bargraph Ammeter For Your Car SC 05101991 January 1999
Rick Walters; Notes/errata: May 1999; Kit(s): DSE, Jaycar
Low Distortion Audio Signal Generator; Pt.1 SC 01402991/01402992 February 1999
John Clarke; Notes/errata: May 1999, August 2000; Kit(s): Altronics K2548, Jaycar
Build A Digital Capacitance Meter SC 04101991/04101992 February 1999
Rick Walters; Notes/errata: May & June 1999; Kit(s): Altronics, Jaycar
A Remote Control Tester; Kit(s): Oatley Electronics February 1999
Leo Simpson
Build A Digital Anemometer; Kit(s): Altronics March 1999
Julian Edgar
3-Channel Current Monitor With Data Logging; Kit(s): Parts from Softmark March 1999
Mark Roberts
Low Distortion Audio Signal Generator; Pt.2 SC 01402991/01402992 March 1999
John Clarke; Notes/errata: May 1999, August 2000; Kit(s): Altronics K2548, Jaycar
Three Electric Fence Testers SC 11303992/11303993/11303994 May 1999
John Clarke; Kit(s): DSE, Jaycar
A 10µH to 19.99mH Inductance Meter SC 04107991 July 1999
Rick Walters; Kit(s): Jaycar (discontinued) - see LC Meter June 2018
Build A PC Monitor Checker SC 04108991 August 1999
C. Roher; See also Circuit Notebook November 1999
Kit(s): Altronics K2720, Jaycar
Switching Temperature Controller; Kit(s): Oatley Electronics August 1999
Branco Justic & Ross Tester; Notes/errata: October 1999, February 2000
Digital Electrolytic Capacitance Meter SC 04109991 September 1999
Eugene W. Vahle Jr.; Kit(s): Jaycar
Semiconductor Curve Tracer SC 04110991/04110992 October 1999
Charles Hansen & Rick Walters
The Fortune Finder Metal Locator SC 04303001 December 1999
John Clarke
An In-Circuit Transistor Tester SC 04109931 January 2000
Darren Yates
Cable & Wiring Tester SC 04411971 January 2000
Leon Williams
DIY Remote Control Tester; Kit(s): Oatley Electronics January 2000
Leo Simpson
Build A Digital Capacitance Meter SC 04101991/2 January 2000
Rick Walters
A Low Ohms Tester For Your DMM SC 04305961 January 2000
John Clarke
3-LED Logic Probe SC 04104981 January 2000
Rick Walters
Low Cost Transistor Mosfet Tester SC 04306951 January 2000
John Clarke
An Audio-Video Test Generator SC 04101001 January 2000
Leon Williams; Kit(s): Altronics K2718, DSE, Jaycar
High-Voltage Insulation Tester SC 04303961 January 2000
John Clarke
10μH to 19.99mH Inductance Meter SC 04107991 January 2000
Rick Walters
Simple Go/No-Go Crystal Checker January 2000
Darren Yates
Build This Sound Level Meter SC 04312961 January 2000
John Clarke
Pink Noise Source SC 04312962 January 2000
John Clarke
A Zener Diode Tester For Your DMM SC 04302961 January 2000
John Clarke
A Digital Voltmeter For Your Car SC 05102001 February 2000
John Clarke; Notes/errata: March 2000, August 2000; Kit(s): Altronics, DSE, Jaycar
Build A Safety Switch Checker; Kit(s): Altronics, Jaycar February 2000
John Clarke
A Sine/Square Wave Oscillator For Your Workbench SC 04102001 February 2000
Rick Walters; See also Circuit Notebook May 2001 for metering
Kit(s): Altronics, Jaycar
A Digital Tachometer For Your Car SC 05104001/05104002 April 2000
John Clarke; Kit(s): Altronics, DSE, Jaycar KC5290
Build A Temperature Logger; Kit(s): Softmark April 2000
Mark Roberts
Automatic Rain Gauge With Digital Readout SC 04105001 June 2000
John Clarke; Notes/errata: February 2001; Kit(s): Jaycar
El-Cheapo Musicians' Lead Tester July 2000
John Clarke
Booze Buster Breath Tester; Kit(s): Oatley Electronics October 2000
Ross Tester
Programmable Electronic Thermostat; Kit(s): Clinch Security Systems November 2000
Michael Jeffery; Notes/errata: Refer project June 1997
A Morse Clock - Look Mum, No Hands! SC 06112001 December 2000
Leon Williams
The WaveMaker: An Arbitrary Waveform Generator SC 04101011 January 2001
David Sibley
A PC Games Port Tester June 2001
Trent Jackson
The HeartMate Heart Rate Monitor SC 04107011/04107012 July 2001
John Clarke; Kit(s): Altronics K8050
40MHz 6-Digit Frequency Counter Module SC 04108011/04108012 August 2001
David L Jones
Super-Sensitive Body Detector SC 03110011 October 2001
Thomas Scarborough
An Automotive Thermometer SC 05110011/05110012 October 2001
John Clarke; Kit(s): Altronics K4349
4-Way Event / Race / Anything Timer; Kit(s): eLabtronics February 2002
Ross Tester
Build A Water Level Indicator SC 05104021 April 2002
Allan March; See July 2007 for updated version
The Matchless Metal Locator SC 04106021 June 2002
Thomas Scarborough; Kit(s): DSE K3014 (no longer available)
Compact 0-80A Automotive Ammeter SC 05106021/05106022/05106023 June 2002
John Clarke; Kit(s): Altronics, DSE, Jaycar KC5336
Digital Storage Logic Probe SC 04308021 August 2002
Trent Jackson & Ross Tester; Notes/errata: October 2002
A Digital Thermometer/Thermostat SC 04208022 August 2002
John Clarke; Notes/errata: October 2002; Kit(s): Altronics K6110, DSE K3016
Sound Card Interface For PC Test Instruments SC 04108021 August 2002
Peter Smith; See also Circuit Notebook May 2003
50-Watt DC Electronic Load SC 04109021 September 2002
Peter Smith; Notes/errata: September 2004; Kit(s): DSE K3444
"Whistle & Point" Cable Tracer; Kit(s): Oatley Electronics October 2002
Jim Rowe; Notes/errata: December 2002
4-Digit Crystal-Controlled Timing Module November 2002
Kit(s): Oatley Electronics, Ozitronics K148
Frank Crivelli & Peter Crowcroft
A 10MHz Direct Digital Synthesis Generator SC 04105031 May 2003
David L Jones; Kit(s): http://alternatezone.com/electronics/dds.htm
Printer Port Hardware Simulator SC 07105031 May 2003
Jim Rowe; Notes/errata: re PCB number: June 2003
Kit(s): DSE K3609 (no longer available)
Test Your Reflexes With A Digital Reaction Timer SC 04106031, EPE 569 June 2003
Jim Rowe; Kit(s): Jaycar KC5360
A Programmable Continuity Tester SC 04207031, EPE 561 July 2003
Trent Jackson; Notes/errata: December 2005; Kit(s): Jaycar KC5362
Digital Instrument Display For Cars, Pt.1 SC 05108031/05108032, EPE 571/572 August 2003
John Clarke; Kit(s): Altronics K4375, DSE K3237, Jaycar KC5365
A Digital Timer For Less Than $20 August 2003
Ross Tester & Jess Benning
Current Clamp Meter Adaptor For DMMs SC 04109031, EPE 548 September 2003
John Clarke; Notes/errata: May 2004; Kit(s): Altronics K2582, Jaycar KC5368
A Low-Cost 50MHz Frequency Meter October 2003
SC 04110031/04110032/04110033, EPE 581/582/583 (see revised version February 2007)
John Clarke; Notes/errata: November 2003, January 2004
Kit(s): Altronics K2540, DSE K7001, Jaycar KC5369
A Programmable PIC-Powered Timer SC 04111031 November 2003
Trent Jackson
MiniCal 5V Meter Calibration Standard SC 04112031, EPE 622 December 2003
Barry Hubble; Notes/errata: April 2004
PIC-Based Car Battery Monitor; Kit(s): www.futurlec.com December 2003
Alan Bonnard
PICAXE-18X 4-Channel Datalogger January 2004
Clive Seager; Notes/errata: August 2004
Simple Supply Rail Monitor For PCs SC 07102041, EPE 576 February 2004
Jim Rowe; Kit(s): Altronics K2895
Shorted Turns Tester For Line Output Transformers; Kit(s): DSE K7205 February 2004
Bob Parker; Notes/errata: Refer EA August 1998
PICAXE-18X 4-Channel Datalogger; Pt.2 February 2004
Clive Seager; Notes/errata: August 2004
The ESR Meter Mk.2; Kit(s): Altronics K2574, DSE K7214 March 2004
Bob Parker
Power Supply Demo Design SC 04103041 March 2004
Peter Smith; Notes/errata: May 2004
PICAXE-18X 4-Channel Datalogger; Pt.3 March 2004
Clive Seager; Notes/errata: August 2004
Loudspeaker Level Meter For Home Theatre Systems SC 01104041, EPE 577 April 2004
John Clarke; Kit(s): Altronics K2552 DSE K5624
The ESR Meter Mk.2; Pt.2; Kit(s): Altronics K2574, DSE K7214 April 2004
Bob Parker
Poor Man's Metal Locator SC 04105041, EPE 570 May 2004
Thomas Scarborough
Appliance Energy Meter, Pt.1 SC 04107041/04107042, EPE 616/617 July 2004
John Clarke; See also Circuit Notebook July 2009
Kit(s): Altronics K4600 DSE K7217
A Poor Man’s Q Meter July 2004
Maurie Findlay
Appliance Energy Meter, Pt.2 SC 04107041/04107042, EPE 616/617 August 2004
John Clarke; See also Circuit Notebook July 2009
Kit(s): Altronics K4600 DSE K7217
Build A 3-State Logic Probe; Kit(s): Altronics K2586 August 2004
Rick Walters
Duty Cycle Meter SC 05car021/05car022/05car023 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5375
High Temperature Digital Thermometer SC 05car041 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5376 (Discontinued)
IR Remote Control Checker SC 04101051, EPE 608 January 2005
Jim Rowe; Kit(s): DSE K3055 Jaycar KC5407
4-Minute Shower Timer; Kit(s): Gum Leaf Energy January 2005
Ross Tester
Inductance & Q-Factor Meter SC 04102051, EPE 644 February 2005
Leonid Lerner; Notes/errata: July 2005, January 2006
Inductance & Q-Factor Meter; Pt.2 SC 04102051, EPE 644 March 2005
Leonid Lerner; Notes/errata: July 2005, January 2006
PICAXE Colour Recognition System June 2005
Clive Seager
Build Your Own Seismograph SC 04105091, EPE 636 September 2005
Dave Dobeson
Dead Simple USB Breakout “Box” October 2005
Stan Swan
PICAXE-Based 433MHz Wireless Thermometer; Kit(s): Clinch Electronic Systems January 2006
Stan Swan; Notes/errata: April 2006
Pocket A/V Test Pattern Generator; Kit(s): Altronics K2725 (discontinued) June 2006
Mick Gergos
LED Tachometer With Dual Displays, Pt.1 SC 05111061/05111062, EPE 699/700 October 2006
John Clarke; Notes/errata: December 2006
UHF Prescaler For Frequency Counters SC 04110061, EPE 697 October 2006
Jim Rowe
A Reformer For Electrolytic Capacitors October 2006
Rodney Champness
Build A Radar Speed Gun, Pt.1 SC DOPPLR1A/DOPPLR1B, EPE 694/695 November 2006
Jim Rowe; Kit(s): Jaycar KC5429
LED Tachometer With Dual Displays, Pt.2 SC 05111061/05111062, EPE 699/700 November 2006
John Clarke; Notes/errata: December 2006
Build A Radar Speed Gun, Pt.2 SC DOPPLR1A/DOPPLR1B, EPE 694/695 December 2006
Jim Rowe; Kit(s): Jaycar KC5429
A Heartbeat CPR Training Beeper SC 04112061 December 2006
Jim Rowe & Ross Tester
Low-Cost 50MHz Frequency Meter; Mk.2 SC 04110031/04110032/04110033 February 2007
John Clarke; Kit(s): Jaycar KC5440
Bike Computer To Digital Ammeter Conversion February 2007
Stan Swan
GPS-Based Frequency Reference; Pt.1 SC 04103072/04103073, EPE 706/707 March 2007
Jim Rowe; Notes/errata: May 2007, September 2011
Simple Ammeter & Voltmeter March 2007
Ross Tester; Notes/errata: June 2007
GPS-Based Frequency Reference; Pt.2 SC 04103072/04103073, EPE 706/707 April 2007
Jim Rowe; Notes/errata: May 2007, September 2011
GPS-Based Frequency Reference: Circuit Modifications May 2007
SC 04103071/2, EPE 706/707
Jim Rowe; Notes/errata: September 2011
Simple Panel Meters Revisted June 2007
Ross Tester; Notes/errata: Refer Project March 2007
Tank Water Level Indicator SC 05104022, EPE 701 July 2007
Allan March; Notes/errata: August 2007; Kit(s): Jaycar KC5449 (discontinued)
PICProbe: A Versatile Logic Probe SC 04110071 October 2007
Ross Purdy; Kit(s): Altronics K2587, Jaycar KC5457
PIC-Based Water-Tank Level Meter; Pt.1 November 2007
SC 04101081/04101082/04111071, EPE 753/757/758
John Clarke; Notes/errata: January & September 2008
Kit(s): Jaycar KC5460 KC5461 KC5462
PIC-Based Water-Tank Level Meter; Pt.2 December 2007
SC 04101081/04101082/04111071, EPE 753/757/758
John Clarke; Notes/errata: January & September 2008
Kit(s): Jaycar KC5460 KC5461 KC5462
Water Tank Level Meter, Pt.3: The Base Station January 2008
SC 04101081/04101082/04111071, EPE 753/757/758
John Clarke; Notes/errata: January & September 2008
Kit(s): Jaycar KC5460 KC5461 KC5462
Improving The Water Tank Level Meter Pressure Sensor January 2008
Kit(s): Jaycar KC5460 KC5461 KC5462
John Clarke
A Low-Cost PC-to-I²C Interface For Debugging SC 04203081, EPE 744 March 2008
Jim Rowe
High-Accuracy Digital LC Meter SC 04105081/04105082/04105083, EPE 745-747 May 2008
Jim Rowe; Kit(s): Altronics K2533
A PIC-Based Musical Tuning Aid SC 04107081, EPE 756 July 2008
Jim Rowe; Kit(s): Altronics K1124
LED Strobe & Contactless Tachometer August 2008
SC 04108081/04108082/04108083/04108084, EPE 775-778
John Clarke; Kit(s): Altronics K2510
LED Strobe & Contactless Tachometer, Pt.2 September 2008
SC 04108081/04108082/04108083/04108084, EPE 775-778
John Clarke; Kit(s): Altronics K2510
USB Clock With LCD Readout, Pt.1 SC 04110081, EPE 779 October 2008
Mauro Grassi; Notes/errata: November 2008
Digital RF Level & Power Meter SC 04210081/04210082/04210083, EPE 783-785 October 2008
Jim Rowe
Versatile Special Function Timer SC 05110081/05car081 October 2008
John Clarke; Kit(s): Altronics K6140
Test The Salt Content Of Your Swimming Pool December 2008
Leo Simpson
Build A Digital Audio Millivoltmeter SC 04103091, EPE 794 March 2009
Jim Rowe; See May 2009 for Input Attenuator
Build A Microcurrent DMM Adaptor EPE 802 April 2009
David L. Jones; Kit(s): alternatezone.com
Precision 10V DC Reference For Checking DMMs SC 04305091, EPE 805 May 2009
Jim Rowe
Input Attenuator For The Digital Audio Millivoltmeter SC 04205091, EPE 811 May 2009
Jim Rowe
High-Current, High-Voltage Battery Capacity Meter, Pt.1 SC 04206091 June 2009
Mauro Grassi; Notes/errata: May 2010; Kit(s): Altronics K1700 (discontinued)
Hand-Held Digital Audio Oscillator EPE 803 June 2009
Darian Lovett & Mauro Grassi; Kit(s): Altronics K2543
PICAXE Humidity Measuring Using The HopeRF HH10D June 2009
Wayne Geary & Stan Swan
Lead-Acid Battery Zapper & Desulphator Mk.3 SC 04107091 July 2009
Jim Rowe; Notes/errata: October 2009; Kit(s): Altronics K1687, Jaycar KC5479
Hand-Held Metal Locator SC 04207091, EPE 810 July 2009
John Clarke
High-Current, High-Voltage Battery Capacity Meter, Pt.2 SC 04206091 July 2009
Mauro Grassi; Notes/errata: May 2010; Kit(s): Altronics K1700 (discontinued)
Lead-Acid/SLA Battery Condition Checker SC 04108091 August 2009
Jim Rowe; Kit(s): Altronics K1688, Jaycar KC5482
Build A Simple Seismograph On A Protoboard September 2009
Stan Swan
Digital Megohm & Leakage Current Meter SC 04110091, EPE 818 October 2009
Jim Rowe; Kit(s): Altronics K2556
Twin-Engine Speed Match Indicator For Boats SC 04111091, EPE 824 November 2009
John Clarke; Kit(s): Altronics K6220 Jaycar KC5488
GPS Synchronisation For Clocks With Sweep Hands SC 04203091 November 2009
Geoff Graham; Notes/errata: Refer project March 2009
Capacitor Leakage Meter With LCD Readout SC 04112091, EPE 826 December 2009
Jim Rowe; Notes/errata: April 2010; Kit(s): Altronics K2558
A Milliohm Adaptor for Digital Multimeters SC 04102101 February 2010
Jim Rowe; Notes/errata: October 2010; Kit(s): Altronics K2531
Digital Audio Signal Generator, Pt.1 March 2010
SC 04203101/04203102/04203103, EPE 838/839
Nicholas Vinen; Notes/errata: June & August 2010; Kit(s): Altronics K2553
A Low Capacitance Adaptor for DMMs SC 04103101 March 2010
Jim Rowe; Kit(s): Altronics K2576, Jaycar KC5493
A Very Accurate Thermometer/Thermostat EPE 840 March 2010
Michael Dedman (words by Nicholas Vinen); Kit(s): Altronics K6115
Capacitor Leakage Adaptor For DMMs SC 04201401, EPE 842 April 2010
Jim Rowe
A 1000:1 EHT Probe SC 04104101, EPE 841 April 2010
Jim Rowe; Kit(s): Altronics K2559
Digital Audio Signal Generator, Pt.2 April 2010
SC 04203101/04203102/04203103, EPE 838/839
Nicholas Vinen; Notes/errata: June & August 2010; Kit(s): Altronics K2553
Digital Audio Signal Generator, Pt.3 May 2010
SC 04203101/04203102/04203103, EPE 838/839
Nicholas VInen; Notes/errata: June & August 2010; Kit(s): Altronics K2553
Air-Quality Meter For Checking CO & CO₂ Levels SC 04306101, EPE 834 June 2010
John Clarke
Build a Digital Insulation Meter SC 04106101/04106102, EPE 849/850 June 2010
Jim Rowe
Lab-Standard 16-Bit Digital Potentiometer SC 04107101, EPE 856 July 2010
Jim Rowe
Electrolytic Capacitor Reformer & Tester SC 04108101, EPE 861 August 2010
Jim Rowe
Electrolytic Capacitor Reformer & Tester, Pt.2 SC 04108101, EPE 861 September 2010
Jim Rowe
Digital/Analog USB Data Logger SC 04112101 December 2010
Mauro Grassi; Notes/errata: January, Februrary, April & May 2011, January 2012
Kit(s): Altronics K2572
Digital/Analog USB Data Logger, Pt.2 SC 04112101 January 2011
Mauro Grassi; Notes/errata: January, Februrary, April & May 2011, January 2012
Kit(s): Altronics K2572
Digital/Analog USB Data Logger, Pt.3 SC 04112101 February 2011
Mauro Grassi; Notes/errata: January, Februrary, April & May 2011, January 2012
Kit(s): Altronics K2572
12V 20-120W Solar Panel Simulator SC 04103111 March 2011
John Clarke
Cheap’n’Simple 100V Speaker/Line Checker SC 04104111 April 2011
Ross Tester
A Handy USB Breakout Box For Project Development SC 04106111 June 2011
Jim Rowe
A Portable Lightning Detector SC 04107111 July 2011
John Clarke
An Electronic Stethoscope SC 01108111 August 2011
John Clarke
Build A Digital Spirit Level SC 04108111 August 2011
Andrew Levido
Ultrasonic Water Tank Level Gauge SC 04109111 September 2011
John Clarke; Kit(s): Jaycar KC5503
Improving The GPS-Based Frequency Reference SC 04103072/04103073 September 2011
Jim Rowe
Measuring Audio Gear Without Spending Big Dollars October 2011
Jim Rowe
Build A G-Force Meter SC 04108111 November 2011
Andrew Levido & Nicholas Vinen; Notes/errata: January 2012; Kit(s): Jaycar KC5504
2.2-100V Zener Diode Tester SC 04111111 November 2011
John Clarke
SemTest: A Discrete Semiconductor Test Set; Pt.1 SC 04103121/04103122/04103123 February 2012
Jim Rowe
SemTest: A Discrete Semiconductor Test Set; Pt.2 SC 04103121/04103122/04103123 March 2012
Jim Rowe
A 6-Decade Resistance Substitution Box SC 04104121/04104122 April 2012
Jim Rowe
SemTest Discrete Semiconductor Test Set; Pt.3 SC 04103121/04103122/04103123 May 2012
Jim Rowe
High Voltage Crowbar SC 04105121 May 2012
Jim Rowe
6-Decade Capacitance Substitution Box SC 04106121/04106122 July 2012
Nicholas Vinen
Isolated High-Current Adaptor For Scopes & DMMs SC 04108121 August 2012
Nicholas Vinen
USB Test Instrument Interface For PCs SC 24109121/24109122 September 2012
Jim Rowe
A 2.5GHz 12-digit Frequency Counter, Pt.1 SC 04111121/04111122/04111123 December 2012
Jim Rowe
USB Power Monitor SC 04109121 December 2012
Nicholas Vinen; Kit(s): Jaycar KC5516
A 2.5GHz 12-Digit Frequency Counter, Pt.2 SC 04111121/04111122/04111123 January 2013
Jim Rowe
Accurate GPS 1pps Timebase For Frequency Counters February 2013
Jim Rowe
Deluxe GPS 1pps Timebase For Frequency Counters SC 04103131 April 2013
Jim Rowe
Simple DMM Auto Power-Off May 2013
Stan Swan
Active RF Detector Probe For DMMs SC 04107131 August 2013
Jim Rowe
Arduino-Based GSM Remote Monitoring Station March 2014
Nicholas Vinen
Precision 10V DC Reference For Checking DMMs SC 04104141 March 2014
Jim Rowe
A Rubidium Frequency Standard For A Song April 2014
Jim Rowe
L-o-o-o-n-g Gating Times For The 12-Digit Counter SC 04106141 July 2014
Jim Rowe
Build a Resistor/Capacitor Substitution Box K7520A/B August 2014
Ross Tester; Kit(s): Altronics
A Wideband Active Differential Oscilloscope Probe SC 04107141/04107142 September 2014
Jim Rowe
A TDR Dongle For Cable Fault-Finding December 2014
Jim Rowe
Isolating High Voltage Probe for Oscilloscopes SC 04108141 January 2015
Jim Rowe & Nicholas Vinen
Spark Energy Meter For Ignition Checks, Pt.1; Kit(s): 04102151/2 February 2015
Dr Hugo Holden
Spark Energy Meter For Ignition Checks, Pt.2; Kit(s): 05101151/2/3 March 2015
Dr Hugo Holden & John Clarke
Appliance Insulation Tester SC 04103151 April 2015
John Clarke
Build A Low-Frequency Distortion Analyser SC 04104151 April 2015
Nicholas Vinen
Appliance Earth Leakage Tester 04203151/2/3 May 2015
John Clarke
Balanced Input Attenuator For Audio Analysers & Scopes 04105151/2/3 May 2015
Jim Rowe
Bad Vibes Infrasound Snooper 04104151 June 2015
Nicholas Vinen
Audio Signal Injector & Tracer 04106151/3 June 2015
John Clarke; Kit(s): Altronics K2547 (discontinued)
AM RF Demodulator Probe For Signal Tracers 04106152 June 2015
John Clarke
WeatherDuino Pro2 Wireless Weather Station, Pt.4 June 2015
Armindo Caneira & Trevor Robinson
Accurate Voltage/Current/Resistance Reference SC 04108151 August 2015
Nicholas Vinen
Check Turntable Speed With This White LED Strobe 04101161 December 2015
John Clarke
Arduino-Based Fridge Monitor & Data Logger December 2015
Somnath Bera
Microwave Leakage Detector SC 04103161 April 2016
Nicholas Vinen; Kit(s): Silicon Chip (PCB & SMD parts)
Arduino Multifunction 24-Bit Measuring Shield SC 04116011 April 2016
Jim Rowe
Arduino-Based Multifunction Measuring Meter, Pt.2 SC 04116011 May 2016
Jim Rowe
Touchscreen-Controlled Energy Meter, Pt.1 SC 04116061/2 August 2016
Jim Rowe & Nicholas Vinen
Compact 8-Digit Auto-Ranging Frequency Meter SC 04105161 August 2016
John Clarke
Touchscreen Appliance Energy Meter, Pt.2 SC 04116061/2 September 2016
Jim Rowe & Nicholas Vinen
Touchscreen Appliance Energy Meter, Pt.3 SC 04116061/2 October 2016
Jim Rowe & Nicholas Vinen
Voltage/Current Reference With Touchscreen, Pt.1 SC 04110161 October 2016
Nicholas Vinen
El Cheapo Modules from Asia - Part 4 February 2017
Jim Rowe
The eFuse: never replace another blown fuse SC 04102171 April 2017
John Clarke
A Digital LCD Audio ’Scope for less than $40! 13803K, product ID 1051616 April 2017
Jim Rowe; Kit(s): Banggood DSO138
Micromite BackPack Touchscreen DDS Signal Generator SC 07102122 April 2017
Geoff Graham; Kit(s): Micromite LCD BackPack kit
Turn your 10MHz counter into a 6GHz+ counter SC 04112162 May 2017
Nicholas Vinen
Arduino-based Digital Inductance & Capacitance Meter June 2017
Jim Rowe
Dead simple radio IF alignment with DDS; Kit(s): SC4425 September 2017
Nicholas Vinen
0.01Hz - 6+GHz touchscreen frequency meter, Part 1 SC 04110171 October 2017
Nicholas Vinen; Kit(s): SC3834 & SC1167
Touch-screen 6GHz+ Frequency Counter, part II SC 04110171 November 2017
Nicholas Vinen; Kit(s): SC3834 & SC1167
Part 3: Finishing our new 6GHz+ Digital Frequency Meter SC 04110171 December 2017
Nicholas Vinen; Kit(s): SC3834 & SC1167
Arduino LC Meter Shield Kit; Kit(s): Altronics K9705 January 2018
Bao Smith
Highly versatile & accurate dot/bar 10-LED Bargraph SC 04101181/2 February 2018
John Clarke; Kit(s): Possible Altronics kit
Wide-range digital LC Meter SC 04106181 June 2018
Tim Blythman
GPS-synched Frequency Reference Pt.1 04107181 October 2018
Tim Blythman; Kit(s): SC4237
GPS-synched, lab-quality frequency reference (Part 2) SC 04107181 November 2018
Tim Blythman and Nicholas Vinen; Kit(s): SC4762
An incredibly sensitive Magnetometer to build SC 04101011 December 2018
Rev. Thomas Scarborough
Touch controlled all-diode checker and plotter SC 04112181 March 2019
Tim Blythman
An AM/FM/CW Scanning HF/VHF RF Signal Generator SC 04106191 June 2019
Andrew Woodfield, ZL2PD
Building the RF Signal Generator (Part 2) SC 04106191 July 2019
Andrew Woodfield, ZL2PD
High resolution Audio Millivoltmeter/Voltmeter SC 04108191 October 2019
Jim Rowe
Precision Audio Signal Amplifier SC 04107191 October 2019
Jim Rowe; Kit(s): Altronics kit TBA
Digital Panel Meter/USB Display suits a range of projects SC 18111182 November 2019
Tim Blythman; Kit(s): Altronics kit TBA
A simple 10.7MHz IF Alignment Oscillator SC06109182 December 2019
John Clarke
Low cost, high precision thermometer calibrator January 2020
Allan Linton-Smith
Indoor Air Quality Monitor based on a Micromite BackPack February 2020
Geoff Graham
Low distortion, two-channel DDS audio signal generator SC 01106192-6 February 2020
Phil Prosser
1000:1 AC High Tension Ignition System Probe March 2020
Dr Hugo Holden
Frequency Reference Signal Distributor CSE200103 April 2020
Charles Kosina
H-Field Transanalyser for AM radio alignment & service SC 06102201 May 2020
Dr Hugo Holden
Our new RCL Subsitution Box has touchscreen control SC 04104201/2 June 2020
Tim Blythman; Kit(s): SC5082
Tough Roadies’ Test Oscillator SC 01005201/2 June 2020
John Clarke
H-Field AM Radio Receiver Transanalyser, Part 2 SC 06102201 June 2020
Dr Hugo Holden
Digital/Touchscreen RCL Substitution Box, Part 2 SC 04104201/2 July 2020
Tim Blythman
USB SuperCodec SC 01106201 August 2020
Phil Prosser
1MHz-6GHz Arduino-based Digital RF Power Meter SC 04106201 August 2020
Jim Rowe
High Power Ultrasonic Cleaner SC 04105201/2 September 2020
John Clarke; Kit(s): Altronics K6022
USB SuperCodec – part two SC 01106201 September 2020
Phil Prosser
USB SuperCodec – part three SC 01106201 October 2020
Phil Prosser
High Power Ultrasonic Cleaner – part two SC 04105201/2 October 2020
John Clarke; Kit(s): Altronics K6022
SMD Test Tweezers SC 04106211/2 October 2021
Tim Blythman; Kit(s): SC5934
Update: SMD Test Tweezers SC 04106211/2 April 2022
Tim Blythman; Kit(s): SC5934
AM-FM DDS Signal Generator CSE211002 May 2022
Charles Kosina
Arduino Programmable Load SC 04105221 June 2022
Tim Blythman
Multimeter Calibrator & Checker SC 04107221 July 2022
Tim Blythman; Kit(s): SC6406
0-110dB RF Attenuator SC CSE211003 July 2022
Charles Kosina; Kit(s): SC6420
Wide-Range Ohmmeter, Part 1 SC 04109221 August 2022
Phil Prosser; Kit(s): SC4663
WiFi Programmable DC Load, Part 1 SC 04108221/2 & SC 18104212 September 2022
Richard Palmer; Kit(s): SC6399
Wide-Range Ohmmeter, Part 2 SC 04109221 September 2022
Phil Prosser; Kit(s): SC4663
30V 2A Bench Supply, Part 1 SC 04105221/2 October 2022
John Clarke
WiFi Programmable DC Load, Part 2 SC 04108221/2 & SC 18104212 October 2022
Richard Palmer; Kit(s): SC6399
LC Meter Mk3 SC CSE220503C, CSE200603 November 2022
Charles Kosina; Kit(s): SC6544
Breadboard PSU Display Adaptor SC 04112222 December 2022
Tim Blythman; Kit(s): SC6752
Q Meter CSE220701, CSE220704 January 2023
Charles Kosina; Kit(s): SC6585
Advanced Test Tweezers, Part 1 SC 04106221/04106212 February 2023
Tim Blythman; Kit(s): SC6631
Advanced Test Tweezers, Part 2 SC 04106221/04106212 March 2023
Tim Blythman; Kit(s): SC6631
Automated Test Bench SC 04110221 April 2023
Richard Palmer
Dual RF Amplifier SC CSE220602A May 2023
Charles Kosina; Kit(s): SC6592
GPS-Disciplined Oscillator SC 04103231 May 2023
Alan Cashin
Basic RF Signal Generator SC CSE221001 June 2023
Charles Kosina; Kit(s): SC6656
Loudspeaker Testing Jig SC 04106231 June 2023
Phil Prosser
Reciprocal Frequency Counter SC CSE230101C July 2023
Charles Kosina; Kit(s): SC6742
Pi Pico Thermal Camera SC 04105231 July 2023
Kenneth Horton
Arduino-based LC & ESR Meter SC 04106182/1 August 2023
Steve Matthysen
Calibrated Measurement Mic SC 01108231-2 August 2023
Phil Prosser; Kit(s): SC6755/6, SC6760-5
Pico Audio Analyser SC 04107231 November 2023
Tim Blythman
K-Type Thermostat SC 04108231/2 November 2023
John Clarke
Compact Frequency Divider SC 04112231 May 2024
Nicholas Vinen; Kit(s): SC6881
WiFi DDS Function Generator, Pt1 SC 04104241 May 2024
Richard Palmer; Kit(s): SC6942
ESR Test Tweezers SC 04105241 June 2024
Tim Blythman
WiFi DDS Function Generator, Pt2 SC 04104241 June 2024
Richard Palmer
Automatic LQ Meter SC CSE240203A July 2024
Charles Kosina; Kit(s): SC6939
JMP009 - Stroboscope and Tachometer August 2024
Tim Blythman
Pico Mixed-Signal Analyser (PicoMSA) SC 04109241 September 2024
Richard Palmer; Kit(s): SC7323
JMP015 - Analog Servo Gauge October 2024
Tim Blythman
JMP013 - Digital spirit level November 2024
Tim Blythman
----------------------------------------------------------------------------------------------
05 AUTOMOTIVE
Protector Car Burglar Alarm SC 3-1-0188 February 1988
John Clarke; Notes/errata: August 1988
Remote Switch For Car Burglar Alarms SC 03-1-288-3 March 1988
John Clarke; Notes/errata: June, July, August, September, October 1988
Fit High-Energy Ignition to Your Car SC 5-1-588 May 1988
Leo Simpson & John Clarke; Notes/errata: April 1993 & December 1998
Kit(s): Altronics, DSE, Jaycar
Ultrasonic Car Burglar Alarm OE102 May 1988
Branco Justic
Convert Your Car to Breakerless Ignition SC 5-1-588 June 1988
Leo Simpson & John Clarke; Notes/errata: April 1993 & December 1998
Kit(s): Jaycar
Fit a Fuel Cut-Off Solenoid to Your Car July 1988
Greg Swain
Build a Car Safety Light SC 05-1-1088-1 November 1988
John Clarke; See also Circuit Notebook February 1989
Simple Car Antenna Amplifier SC 05-1-1188-1 December 1988
John Clarke & Greg Swain
Ultrasonic Proximity Detector for Cars SC 05102891 January 1989
John Clarke & Greg Swain; Notes/errata: March 1989
Flasher Circuit For Auxiliary Brake Lights SC 05104891 April 1989
Bob Flynn & Greg Swain; See Ask SC Dec 89 for 6V modification
Exhaust Gas Monitor For Cars & Vans SC 05107891 July 1989
Bob Flynn & Leo Simpson
Compact Ultrasonic Car Burglar Alarm; Kit(s): Oatley July 1989
Greg Swain; Notes/errata: October 1989
Delay Unit For Automatic Antennas SC 05103901 March 1990
Greg Swain
High Energy Ignition For Reluctor Pickups SC 05106901 May 1990
John Clarke & Leo Simpson; Notes/errata: April 1993, December 1998
A Speed Alarm For Your Car PGOSA 10/89 June 1990
Peter Gray; Kit(s): Novocastrian Electronics
DC-DC Converter For Car Amplifiers SC 05111901 December 1990
John Clarke & Greg Swain; Notes/errata: March 1991
Wiper Pulser For Rear Windows SC 05211901 December 1990
John Clarke
Battery Discharge Pacer For Electric Vehicles SC 11108911 July 1991
Dieter Kuenne
Build A Digital Tachometer SC 05108911 August 1991
Darren Yates; Kit(s): Altronics, DSE K3241, Jaycar
Build A Talking Voltmeter For Your PC, Pt.1 SC 07110911 October 1991
Darren Yates; Notes/errata: December 1991
Flashing Alarm Light For Cars; Kit(s): DSE November 1991
Syd McKitrick
Build A Talking Voltmeter For Your PC, Pt.2 SC 07110911 November 1991
Darren Yates; Notes/errata: December 1991
Automatic Controller For Car Headlights CE 91 AL January 1992
Wally Hammer & Jeff Monegal; See Circuit Notebook July 1992
Kit(s): CTOAN Electronics
Thermostatic Switch For Car Radiator Fans SC 05204921 March 1992
John Clarke; Notes/errata: June 1992
An Easy-To-Build UHF Remote Switch; Kit(s): Oatley Electronics December 1992
Greg Swain
A Low Fuel Indicator For Your Car SC 05203931 February 1993
John Clarke & Greg Swain; Kit(s): DSE
A Digital Voltmeter For Your Car SC 04105931/04105932 June 1993
Darren Yates; Notes/errata: July 1996; Kit(s): DSE, Jaycar
Build A 60-LED Brake Light Array; Kit(s): Oatley Electronics August 1993
Leo Simpson
Courtesy Light Switch-Off Timer For Cars SC 05209931 October 1993
John Clarke
A Coolant Level Alarm For Your Car SC 05305941 June 1994
John Clarke & Leo Simpson; Notes/errata: February 1995; Kit(s): Jaycar
Build A Talking Headlight Reminder SC 01109941 October 1994
Darren Yates; Kit(s): DSE, Jaycar
UHF Radio Alarm Pager OE93/PAGER November 1994
Branco Justic; Kit(s): Oatley Electronics
An Easy-To-Build Car Burglar Alarm ZA1287 December 1994
Bernie Gilchrist; Kit(s): DSE K4312/K4314
A Dual Channel UHF Remote Control ZA1307 January 1995
Bernie Gilchrist; Kit(s): DSE K3260
Build An Oil Change Timer For Your Car SC 05102951 February 1995
Darren Yates
A Fuel Injector Monitor For Cars SC 05108951 August 1995
Rick Walters & Leo Simpson; Notes/errata: September 1995, December 1996
Kit(s): Jaycar
Digital Speedometer & Fuel Gauge For Cars; Pt.1 October 1995
Kit(s): CTOAN Electronics (no longer available)
Jeff Monegal
A Mixture Display For Fuel Injected Cars SC 05111951 November 1995
Julian Edgar; See p.11 ZOOM EFI Tech Special for modification
Kit(s): Jaycar KC5195
Digital Speedometer & Fuel Gauge For Cars, Pt.2 November 1995
Kit(s): CTOAN Electronics (no longer available)
Jeff Monegal
Build An Engine Immobiliser For Your Car SC 05310951 December 1995
John Clarke; Notes/errata: December 1996; Kit(s): Altronics, Jaycar
Low Cost Multi-Tone Dashboard Alarm February 1996
Julian Edgar
Programmable Electronic Ignition System For Cars SC 05103961 March 1996
Anthony Nixon; Notes/errata: Feedback September 1996
Build A Knock Indicator For Leaded-Petrol Engines SC 05302961 April 1996
John Clarke; Kit(s): Altronics, Jaycar
KnightRider Bi-directional LED Chaser SC 08105961 May 1996
Rick Walters; Kit(s): DSE K3168, Jaycar KC5204
Feedback On The Programmable Ignition System SC 05103961 September 1996
Anthony Nixon; Notes/errata: Refer Project March 1996
600W DC-DC Converter For Car Hifi Systems; Pt.1 SC 05308961 October 1996
John Clarke; Kit(s): Jaycar
600W DC-DC Converter For Car Hifi Systems; Pt.2 SC 05308961 November 1996
John Clarke; Kit(s): Jaycar
The Teeny Timer: A Low-Tech Timer With No ICs April 1997
Leo Simpson
A Digital Voltmeter For Your Car SC 04304971/04304972 April 1997
John Clarke
Neon Tube Modulator For Cars & Light Systems SC 05105971 May 1997
Rick Walters; Kit(s): DSE, Jaycar KC5221
The Bass Barrel Subwoofer; Kit(s): Altronics August 1997
Julian Edgar
Multi-Spark Capacitor Discharge Ignition System SC 05309971 September 1997
John Clarke; Notes/errata: May 1999
Kit(s): Altronics K4370, DSE K3307, Jaycar KC5232
Build A 5-Digit Tachometer SC 04310971/04310972 October 1997
John Clarke; Notes/errata: April 1998, February 2004; Kit(s): Jaycar
Add Central Locking To Your Car; Kit(s): Oatley Electronics October 1997
Leo Simpson
Build A Speed Alarm For Your Car SC 05311971/05311972/05311973 December 1997
John Clarke; Kit(s): Altronics, Jaycar
Loudness Control For Car Hifi Systems SC 01111971 December 1997
Rick Walters; Kit(s): Jaycar
Universal High-Energy Ignition System SC 05305981 June 1998
John Clarke; Notes/errata: October 1998; Kit(s): Altronics, DSE, Jaycar KC5247
A Blocked Air Filter Alarm September 1998
Adrian Cuesta
A Gear Change Indicator For Cars SC 05308981/05308982 September 1998
John Clarke; Kit(s): Altronics, Jaycar
Turbo Timer For Your Car SC 05411981 November 1998
John Clarke; Notes/errata: February 1999; Kit(s): Altronics K4060, Jaycar KC5254
Engine Immobiliser Mk.2 SC 05412981 December 1998
John Clarke; Kit(s): DSE, Jaycar KC5255
A LED Bargraph Ammeter For Your Car SC 05101991 January 1999
Rick Walters; Notes/errata: May 1999; Kit(s): DSE, Jaycar
Keypad Engine Immobiliser SC 05401991 January 1999
John Clarke; Kit(s): DSE, Jaycar KC5257
A Rev Limiter For Cars SC 05304991/05412981 April 1999
John Clarke; Notes/errata: October 2007; Kit(s): Jaycar KC5265
Programmable Ignition Timing Module For Cars SC 05406991 June 1999
Anthony Nixon; Kit(s): Jaycar KC5202 (discontinued)
Programmable Ignition Timing Module For Cars; Pt.2 SC 05406991 July 1999
Anthony Nixon; Kit(s): Jaycar KC5202 (discontinued)
Daytime Runnings Lights For Cars SC 05408991 August 1999
John Clarke; Notes/errata: September 1999; Kit(s): Altronics, DSE, Jaycar
A Speed Alarm For Cars; Pt.1 SC 05310991/05310992 November 1999
John Clarke; See also Circuit Notebook February 2006
Kit(s): Altronics K4345 (discontinued), Jaycar KC5279 (discontinued)
Speed Alarm For Cars, Pt.2 SC 05310991/05310992 December 1999
John Clarke; See also Circuit Notebook February 2006
Kit(s): Altronics K4345 (discontinued), Jaycar KC5279 (discontinued)
A Digital Voltmeter For Your Car SC 05102001 February 2000
John Clarke; Notes/errata: March 2000, August 2000; Kit(s): Altronics, DSE, Jaycar
An Ultrasonic Parking Radar; Kit(s): Oatley Electronics February 2000
Branco Justic
The OzTrip Car Computer; Pt.1; Kit(s): Oztechnics March 2000
Robert Priestley
A Digital Tachometer For Your Car SC 05104001/05104002 April 2000
John Clarke; Kit(s): Altronics, DSE, Jaycar KC5290
The OzTrip Car Computer; Pt.2; Kit(s): Oztechnics April 2000
Robert Priestley
Fuel Mixture Display For Cars, Pt.1 SC 05108001/05108002 September 2000
John Clarke; Kit(s): Altronics K4347, DSE K4213, Jaycar KC5300
Installing A Free-Air Subwoofer In Your Car October 2000
Julian Edgar
Fuel Mixture Display For Cars, Pt.2 SC 05108001/05108002 October 2000
John Clarke; Kit(s): Altronics K4347, DSE K4213, Jaycar KC5300
Headlight Reminder For Cars SC 05108011 August 2001
John Clarke; Kit(s): Altronics K4348, Jaycar KC5317
An Automotive Thermometer SC 05110011/05110012 October 2001
John Clarke; Kit(s): Altronics K4349
A Neon Tube Modulator For Cars SC 05111011 November 2001
Rick Walters; Kit(s): Jaycar KC5322
A Cheap 'n' Easy Motorbike Alarm SC 05101021 January 2002
Mick Gergos; Notes/errata: February 2002
The Battery Guardian SC 05105021 May 2002
John Clarke; Notes/errata: July 2002; Kit(s): Altronics K4080, Jaycar KC5334
Driving Light & Accessory Protector For Cars SC 03109021 September 2002
Rick Walters; Kit(s): Jaycar KC5337
A Tiptronic-Style Gear Indicator January 2003
SC 05101031/05101032/05101033, EPE 549/550/551
John Clarke; Notes/errata: February 2003, December 2003, January 2004
Kit(s): Altronics K4346, Jaycar KC5344
LED Lighting For Your Car March 2003
SC 05103031/05103032/05103033/05103034/05103035/05103036, EPE 568
Peter Smith; Kit(s): Jaycar KC5354/KC5355/KC5356/KC5357/KC5359
The Little Dynamite Subwoofer March 2003
Julian Edgar
Adjustable DC-DC Converter For Cars SC 11106031, EPE 578 June 2003
John Clarke; Kit(s): Altronics K6320, DSE K3234, Jaycar KC5358
Digital Instrument Display For Cars, Pt.1 SC 05108031/05108032, EPE 571/572 August 2003
John Clarke; Kit(s): Altronics K4375, DSE K3237, Jaycar KC5365
Digital Instrument Display For Cars, Pt.2 SC 05108031/05108032, EPE 571/572 September 2003
John Clarke; Kit(s): Altronics K4375 DSE K3237 Jaycar KC5365
PIC-Based Car Battery Monitor; Kit(s): www.futurlec.com December 2003
Alan Bonnard
A Smart Mixture Display For Your Car SC 05104041, EPE 584 April 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5374
Courtesy Light Delay For Cars SC 05106041, EPE 603 June 2004
John Clarke; Notes/errata: July 2004; Kit(s): Jaycar KC5392
Smart Mixture Meter SC 05car011 / SC 05104041 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5374
Duty Cycle Meter SC 05car021/05car022/05car023 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5375
High Temperature Digital Thermometer SC 05car041 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5376 (Discontinued)
Versatile Auto Timer SC 05car081 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5379
Simple Voltage Switch SC 05car061 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5377
Temperature Switch SC 05car101 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5381
Frequency Switch SC 05car051 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5378
Delta Throttle Timer SC 05car071 / SC 05103041 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5373
Digital Pulse Adjuster SC 05car131 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5384
LCD Hand Controller SC 05car141 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5386
Peak-Hold Injector Adaptor SC 05car151/05car152 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5395
Digital Fuel Adjuster SC 05car121 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5385 (Discontinued; revised version: Sensor Modifier, December 2016)
Speedo Corrector SC 05car091 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5380 (Discontinued)
Independent Electronic Boost Controller SC 05car131 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5387
Nitrous Fuel Controller SC 05car111 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5382
Intelligent Turbo Timer SC 05car031 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5383
Build A V8 Doorbell SC 05101051, EPE 637/638 January 2005
John Clarke; Notes/errata: March 2005; Kit(s): Jaycar KC5405/KC5406
Carbon Monoxide Alert SC 05108051 August 2005
John Clarke; Notes/errata: September 2005; Kit(s): K4614
Simple Alcohol Level Meter October 2005
John Clarke; Notes/errata: November 2005
Universal High-Energy Ignition System; Pt.1 SC 05112051 December 2005
John Clarke; Notes/errata: January 2006; Kit(s): DSE K3305 Jaycar KC5419
Universal High-Energy Ignition System; Pt.2 SC 05112051 January 2006
John Clarke; Notes/errata: January 2006; Kit(s): DSE K3305 Jaycar KC5419
Low-Cost Intercooler Water Spray Controller SC 05104041, EPE 584 March 2006
Julian Edgar
Notes/errata: Refer Mixture Meter project April 2004 and Performance Electronics For Cars Book
Kit(s): Jaycar KC5374/KC5422
Vehicle Voltage Monitor SC 05105061, EPE 642 May 2006
John Clarke; See also Circuit Notebook June 2009
Kit(s): DSE K4608 Jaycar KC5424
LED Tachometer With Dual Displays, Pt.1 SC 05111061/05111062, EPE 699/700 October 2006
John Clarke; Notes/errata: December 2006
Build A Radar Speed Gun, Pt.1 SC DOPPLR1A/DOPPLR1B, EPE 694/695 November 2006
Jim Rowe; Kit(s): Jaycar KC5429
DC Relay Switch For High-Current Loads SC 05211061, EPE 677 November 2006
John Clarke; Notes/errata: December 2006; Kit(s): Jaycar KC5434
LED Tachometer With Dual Displays, Pt.2 SC 05111061/05111062, EPE 699/700 November 2006
John Clarke; Notes/errata: December 2006
Build A Radar Speed Gun, Pt.2 SC DOPPLR1A/DOPPLR1B, EPE 694/695 December 2006
Jim Rowe; Kit(s): Jaycar KC5429
Super Speedo Corrector SC 05112061/05car091, EPE 682 December 2006
John Clarke & Julian Edgar; Kit(s): Jaycar KC5435 (discontinued)
12/24V Auxiliary Battery Controller; Kit(s): Oatley Electronics K227 December 2006
Branko Justic & Ross Tester
A Versatile Temperature Switch SC 05car101, EPE 678 January 2007
John Clarke & Julian Edgar; Notes/errata: April 2006
Kit(s): Jaycar KC5381 (discontinued), see Temperature Switch Mk2 June 2018
Intelligent Car Air-Conditioner Controller SC 05101071, EPE 685 January 2007
John Clarke; Kit(s): Jaycar KC5437
Simple Variable Boost Control For Turbo Cars SC 05102072, EPE 690 February 2007
Denis Cobley; Notes/errata: March 2007; Kit(s): Jaycar KC5438
Fuel Cut Defeater For The Boost Control SC 05102071, EPE 691 February 2007
Denis Cobley; Notes/errata: March 2007; Kit(s): Jaycar KC5439
Programmable Ignition System For Cars; Pt.1 March 2007
SC 05104071/05104072/05104073, EPE 727-729
John Clarke; Notes/errata: May, September & November 2007
Kit(s): Jaycar KC5442 (discontinued), KC5443 (discontinued)
Programmable Ignition System For Cars; Pt.2 April 2007
SC 05104071/05104072/05104073, EPE 727-729
John Clarke; Notes/errata: May, September & November 2007
Kit(s): Jaycar KC5442 (discontinued), KC5443 (discontinued)
Programmable Ignition System For Cars; Pt.3 May 2007
SC 05104071/05104072/05104073, EPE 727-729
John Clarke; Notes/errata: May, September & November 2007
Kit(s): Jaycar KC5442 (discontinued), KC5443 (discontinued)
A Knock Detector For The Programmable Ignition SC 05106071, EPE 735 June 2007
John Clarke; Kit(s): Jaycar KC5444
Frequency-Activated Switch For Cars 05car051 June 2007
John Clarke & Julian Edgar; Kit(s): KC5378
Adaptive Turbo Timer SC 05108071 August 2007
John Clarke; Kit(s): Jaycar KC5451
Shift Indicator & Rev Limiter For Cars SC 05102081/05102082, EPE 749/750 February 2008
John Clarke
Replacement CDI Module For Small Petrol Motors SC 05105081, EPE 772 May 2008
John Clarke; Kit(s): Altronics K4025, Jaycar KC5466
12V Speed Controller/Lamp Dimmer SC 05111081, EPE 781, 05car111 November 2008
Leo Simpson; Kit(s): Altronics K6008, Jaycar KC5382
Wideband Air-Fuel Mixture Display Unit SC 05311081, EPE 825 November 2008
John Clarke; Notes/errata: January 2009
Versatile Car Scrolling Display, Pt.1 SC 05101091/05101092, EPE 786/787 December 2008
Mauro Grassi; Notes/errata: February 2009; Kit(s): Altronics K4352
Simple Voltage Switch For Car Sensors SC 05112081/05car061, EPE 801 December 2008
John Clarke; Kit(s): KC5377 (discontinued)
Multi-Purpose Car Scrolling Display, Pt.2 SC 05101091/05101092, EPE 786/787 January 2009
Mauro Grassi; Kit(s): Altronics K4352
Multi-Purpose Car Scrolling Display, Pt.3 SC 05101091/05101092, EPE 786/787 February 2009
Mauro Grassi; Kit(s): Altronics K4352
School Zone Speed Alert; Kit(s): Jaycar KC5472 April 2009
Jim Rowe; Notes/errata: May 2009
Using A Wideband O₂ Sensor In Your Car, Pt.1 SC 05110091, EPE 829 September 2009
John Clarke; Notes/errata: November 2009, January 2010
Kit(s): Jaycar KC5485/KC5486 (discontinued) - see Mk2 version June-August 2012
Using A Wideband O₂ Sensor In Your Car, Pt.2 SC 05110091, EPE 829 October 2009
John Clarke; Notes/errata: November 2009, January 2010
Kit(s): Jaycar KC5485/KC5486 (discontinued) - see Mk2 version June-August 2012
Voltage Interceptor For Cars With ECUs SC 05112091 December 2009
John Clarke; Notes/errata: January 2010; Kit(s): KC5490
A Multi-Function GPS Car Computer, Pt.1 SC 05101101 January 2010
Geoff Graham; Kit(s): Altronics K1133 (discontinued) - see Ask SC April 2015 p92
Voltage Interceptor For Cars With ECUs, Pt.2 SC 05112091 January 2010
John Clarke; Kit(s): KC5490
An OBDII Interface For A Laptop Computer SC 05102101 February 2010
John Clarke; Kit(s): Altronics K4065
A Multi-Function GPS Car Computer, Pt.2 SC 05101101 February 2010
Geoff Graham; Kit(s): Altronics K1133 (discontinued) - see Ask SC April 2015 p92
Low-Power Car/Bike USB Charger SC 14105101, EPE 844 May 2010
Nicholas Vinen; Kit(s): K1681
Wideband Oxygen Sensor Controller Mk.2, Pt.1 SC 05106121/05106122 June 2012
John Clarke; Notes/errata: July & September 2012
Wideband Oxygen Sensor Controller Mk.2, Pt.2 SC 05106121/05106121 July 2012
John Clarke; Notes/errata: July & September 2012
Wideband Oxygen Sensor Controller Mk.2, Pt.3 SC 05106121/05106122 August 2012
John Clarke; Notes/errata: July & September 2012
High-Energy Ignition System for Cars, Pt.1 SC 05110121 November 2012
John Clarke; Notes/errata: February 2013; Kit(s): Jaycar KC5513 Altronics K4030
High-Energy Ignition System For Cars, Pt.2 SC 05110121 December 2012
John Clarke; Notes/errata: February 2013; Kit(s): Jaycar KC5513 Altronics K4030
Improved Jacob's Ladder SC 05110121 February 2013
Leo Simpson; Kit(s): Jaycar KC5520 Altronics K4030 (ignition only)
Speedo Corrector, Mk.3 SC 05109131 September 2013
John Clarke
Automatic Car Headlight Controller SC 03111131 October 2013
Nicholas Vinen & John Clarke; Kit(s): Jaycar KC5524
Courtesy LED Light Delay For Cars October 2014
SC 05109141 (incorrected listed in article as 15109141)
John Clarke
High-Energy Multi-Spark CDI For Performance Cars 05112141 December 2014
John Clarke
High-Energy Multi-Spark CDI For Performance Cars, Pt.2 SC 05112141 January 2015
John Clarke
Spark Energy Meter For Ignition Checks, Pt.1; Kit(s): 04102151/2 February 2015
Dr Hugo Holden
Spark Energy Meter For Ignition Checks, Pt.2; Kit(s): 05101151/2/3 March 2015
Dr Hugo Holden & John Clarke
Build A Driveway Monitor, Pt.2 SC 15105151 August 2015
John Clarke; Kit(s): Altronics K4035
Reduce Rear-End Collision Risk With The QuickBrake SC 05102161 January 2016
John Clarke; Kit(s): Altronics K4344
Ultrasonic Garage Parking Assistant SC 07102122 March 2016
Geoff Graham; Kit(s): Silicon Chip (Micromite LCD BackPack)
Delta Throttle Timer For Cars SC 05102161 March 2016
John Clarke
4-Input Automotive Fault Detector SC 05109161 September 2016
Dr Hugo Holden & Greg Swain
Automotive Sensor Modifier SC 05111161 December 2016
John Clarke
High Power DC Motor Speed Control SC 11112161 January 2017
John Clarke; Kit(s): Jaycar KC5534
The eFuse: never replace another blown fuse SC 04102171 April 2017
John Clarke
RapidBrake - giving the guy behind extra stopping time SC 05105171 July 2017
John Clarke
Building and calibrating the RapidBrake SC 05105171 August 2017
John Clarke
High Power DC Fan Controller has loads of applications 05111171 January 2018
Nicholas Vinen
Multi-use Frequency Switch SC 05104181 May 2018
John Clarke
Low-voltage, high-current DC Motor Speed Controller SC 05108181 October 2018
Nicholas Vinen
Low voltage DC Motor and Pump Controller (Part 2) SC 05108181 December 2018
Nicholas Vinen
Steering Wheel Audio Button to Infrared Adaptor SC 05105191 June 2019
John Clarke
Very accurate speedo, car clock & auto volume change SC 01104191 June 2019
Tim Blythman
Car Radio Head Unit Dimmer Adaptor SC 05107191 August 2019
John Clarke
1000:1 AC High Tension Ignition System Probe March 2020
Dr Hugo Holden
An altimeter for your... car? SC 05105201 May 2020
Peter Bennett; Kit(s): SC4237
Advanced GPS Computer - Part 1 SC 05102211 June 2021
Tim Blythman
Advanced GPS Computer – Part 2 SC 05102211 July 2021
Tim Blythman
DC Supply Transient Filter SC 08108221 November 2022
John Clarke
Wideband Fuel Mixture Display Part 1 SC 05104231 April 2023
John Clarke; Kit(s): SC6721
Wideband Fuel Mixture Display, Pt2 SC 05104231 May 2023
John Clarke; Kit(s): SC6721
Wideband Fuel Mixture Display, Pt3 SC 05104231 June 2023
John Clarke; Kit(s): SC6721
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06 RADIO COMMUNICATIONS
Subcarrier Adaptor For FM Tuners SC 061-1287 January 1988
John Clarke & Leo Simpson; See also Ask SC Nov 92 for modifications
The Flexo Shortwave Antenna January 1988
Ed Noll
Old-Time Crystal Radio March 1988
John Hill
Booster for TV & FM Signals OE12 & SC 0210788 July 1988
Branco Justic
Build an FM Stereo Transmitter SC 06-1-1-1088-1 October 1988
John Clarke & Leo Simpson
High Performance FM Antenna October 1988
Bob Flynn & Leo Simpson
The Classic Matchbox Crystal Set October 1988
Steve Payor
Passive Loop Antenna For AM Radios PX1-7 June 1989
Greg Swain; Kit(s): Technikit Electronics, Melbourne
2-Chip Portable AM Stereo Radio SC 06108891 September 1989
Steve Payor; Notes/errata: May 1990
FM Radio Intercom For Motorbikes SC 06111891 October 1989
John Clarke; Notes/errata: December 1988; Kit(s): Altronics, DSE, Jaycar
The Gladesville GaAsFet Amplifier October 1989
'Big Julie' Kentwell, VK2XBR
2-Chip Portable AM Stereo Radio SC06108891 October 1989
Steve Payor; Notes/errata: May 1990
Super Sensitive FM Bug ZA-1431 November 1989
Greg Swain; Kit(s): DSE K5006
2-Chip Portable AM Stereo Radio SC 06108891 November 1989
Steve Payor; Notes/errata: May 1990
FM Radio Intercom For Motorbikes SC 0611189 November 1989
John Clarke & Greg Swain
Active Antenna For Shortwave Listening January 1990
Greg Swain; Notes/errata: May 1990
Phone Patch For Radio Amateurs, Pt.1 SC 12112891 January 1990
John Clarke & Greg Swain; Notes/errata: August 1990
Phone Patch For Radio Amateurs, Pt.2 SC 12112891 February 1990
John Clarke & Greg Swain; Notes/errata: August 1990
Amateur Radio February 1990
Garry Cratt, VK2YBX
Build A VOX With Delayed Audio SC 06104901 April 1990
Darren Yates; Notes/errata: June 1990
The Mozzie CW Transceiver; Kit(s): Australian Test & Measurement May 1990
Clive Chamberlain
13.5V 25A Power Supply For Transceivers, Pt.1 SC 14105911/14105912 May 1991
John Clarke & Leo Simpson
13.5V 25A Power Supply For Transceivers, Pt.2 SC 14105911/14105912 June 1991
John Clarke & Leo Simpson
Baby Room Monitor & FM Transmitter SC 06210911 January 1992
John Clarke
Multi-Station Headset Intercom; Pt.1 SC 01302921 / 04104921 June 1992
Marque Crozman; Kit(s): Altronics K5250
Multi-Station Headset Intercom; Pt.2 SC 01302921 / 04104921 July 1992
Marque Crozman; Kit(s): Altronics K5250
Build An FM Radio Receiver SC 06111921 November 1992
Darren Yates; Kit(s): DSE K5014
Build A Flea-Power AM Radio Transmitter SC 06112921 January 1993
Darren Yates
Build An AM Radio Trainer; Pt.1 SC 06106931 June 1993
Marque Crozman & Leo Simpson; Kit(s): DSE
Build An AM Radio Trainer; Pt.2 SC 06106931/06107931 July 1993
Marque Crozman & Leo Simpson; Kit(s): DSE
An 80-Metre AM/CW Transmitter For Amateurs SC 06106941 / DSE ZA1293 June 1994
Darren Yates; Kit(s): DSE K6004
A Microprocessor Controlled Morse Keyer; Kit(s): FLC Microdesign August 1994
Alexandre Zatsepin
Dual Diversity Tuner For FM Microphones; Pt.1 SC 06307941/06307942 August 1994
John Clarke; Notes/errata: September 1994
Build The MiniVox Voice Operated Relay SC 06109941 September 1994
Darren Yates; Notes/errata: December 1996
Kit(s): Altronics K5544, DSE, Jaycar KC5172
An AM Radio For Aircraft Weather Beacons SC 06107941 September 1994
Darren Yates; Kit(s): DSE
Dual Diversity Tuner For FM Microphones; Pt.2 SC 06307941/06307942 September 1994
John Clarke; Notes/errata: September 1994
80-Metre DSB Amateur Transmitter SC 06110941 November 1994
Leon Williams VK2DOB; Kit(s): Jaycar
Subcarrier Decoder For FM Receivers SC 06303951 March 1995
John Clarke; Kit(s): Jaycar
Build An FM Radio Trainer; Pt.1 SC 06303951 April 1995
John Clarke; Kit(s): DSE
Build A Mains Music Transmitter & Receiver CE/MUSA/94 & CE/MUSB/94 May 1995
Jeff Monegal; Notes/errata: July 1995; Kit(s): CTOAN Electronics
Build An FM Radio Trainer; Pt.2 SC 06303951/06304951 May 1995
John Clarke; Kit(s): DSE
CB Transverter For The 80M Amateur Band; Pt.1 November 1995
Leon Williams
CB Transverter For The 80M Amateur Band; Pt.2 December 1995
Leon Williams
A 3-Band HF Amateur Receiver SC 06109961 September 1996
Leon Williams; Kit(s): DSE
Active Filter Cleans Up Weak CW Reception SC 06112961 December 1996
Leon Williams
Build A 5-Element FM Antenna March 1998
Leo Simpson & Bob Flynn
An FM Transmitter For Musicians; Kit(s): Oatley Electronics November 1998
Branco Justic
An FM Radio Tuner Card For Your PC SC 06106991 June 1999
Mark Roberts; Notes/errata: August 1999; Kit(s): Jaycar
An Audio-Video Transmitter SC 02405991 July 1999
John Clarke; Notes/errata: September 1999, February 2001
Kit(s): Altronics K5865, Jaycar KC5272
Parallel Port VHF FM Receiver; Kit(s): Softmark June 2000
Mark Roberts; Notes/errata: September 2000, March 2001
A Morse Clock - Look Mum, No Hands! SC 06112001 December 2000
Leon Williams
The Minimitter FM Stereo Transmitter SC 06104011 April 2001
John Clarke; Kit(s): Altronics, DSE, Jaycar
A 2.4GHz High-Power Audio-Video Link; Kit(s): Oatley Electronics February 2002
Ross Tester
Direct Conversion Receiver For Radio Amateurs; Pt.1 SC 06107021 July 2002
Leon Williams
Direct Conversion Receiver For Radio Amateurs; Pt.2 SC 06107021 August 2002
Leon Williams
Wi-Fi: 21st Century Cat's Whiskers November 2002
Stan Swan
The Micromitter Stereo FM Transmitter SC 06112021 December 2002
John Clarke; Kit(s): Jaycar KC5341, DSE K5009
Simple VHF FM/AM Radio SC 06212021 December 2002
Andrew Woodfield; Notes/errata: April 2003
Kit(s): DSE K5015 (no longer available)
Home-Brew Weatherproof 2.4GHz WiFi Antennas SC 06108031 August 2003
Rob Clarke
Smart Radio Modem For Microcontrollers SC 06111031 November 2003
Nenad Stojadinovic; Kit(s): Altronics K9000
VHF Receiver For Weather Satellites SC 06112031 December 2003
Jim Rowe; Notes/errata: January 2004 p38, February 2004, April 2004, October 2004
Kit(s): DSE K3226 (no longer available)
Antenna & RF Preamp For Weather Satellites SC 06101041 January 2004
Jim Rowe; Notes/errata: April 2004
2.4GHz Audio/Video Link; Kit(s): Oatley Electronics January 2004
Ross Tester
A Real Yagi Antenna For UHF CB February 2005
Stan Swan
Shielded Loop Antenna For AM Radios; Kit(s): Gless Audio (glesstron@msn.com) March 2005
David Whitby
Sending Picaxe Data Over 477MHz UHF CB March 2005
Stan Swan
Wireless Microphone/Audio Link; Kit(s): Oatley Electronics K222 May 2005
Ross Tester
433MHz Wireless Data Communication December 2005
Stan Swan
“Little Jim” AM Radio Transmitter SC 06101061/06101062 January 2006
Jim Rowe
Boost Your XBee’s Range Using Simple Antennas May 2006
Stan Swan
AM Loop Antenna & Amplifier EPE 813/814 October 2007
Branko Justic & Ross Tester; Kit(s): Oatley Electronics K256
Build The “Aussie-3” Valve AM Radio January 2008
Keith Walters
The Minispot 455kHz Modulated Oscillator SC 06101081, EPE 726 January 2008
Mauro Grassi; Notes/errata: July 2008
A Digital VFO with LCD Graphics Display SC 06103082, EPE 734 March 2008
Andrew Woodfield, ZL2PD; Notes/errata: June 2010
Planet Jupiter Receiver SC 06108081, EPE 771 August 2008
Jim Rowe; Kit(s): Altronics K1127 (discontinued)
Digital RF Level & Power Meter SC 04210081/04210082/04210083, EPE 783-785 October 2008
Jim Rowe
AM Broadcast Band Portable Loop Antenna January 2009
Stan Swan
Converting a Uniden Scanner To Pick Up AIS Signals August 2009
Stan Swan
A Dead-Simple Masthead Amplifier; Kit(s): Altronics K274 November 2009
Branko Justic & Ross Tester
Cheap-N-Easy 433MHz Sniffer SC 06101111 January 2011
Stan Swan
Simple, Cheap 433MHz Locator Transmitter SC 06102111 February 2011
Stan Swan
Build A Simple AM Radio SC 06101121 January 2012
John Clarke
Dorji 433MHz Wireless Data Modules January 2012
Stan Swan
LF-HF Up-Converter For VHF/UHF Digital TV Dongles SC 07106131 June 2013
Jim Rowe
Add A UHF Link To A Universal Remote Control SC 15107131 July 2013
John Clarke
Track Aircraft On Your Own ADS-B Receiving Station August 2013
Jim Rowe
Active RF Detector Probe For DMMs SC 04107131 August 2013
Jim Rowe
Collinear Antennas For Aircraft ADS-B Signals September 2013
Ross Tester
SiDRADIO: An Integrated SDR Using A DVB-T Dongle, Pt.1 October 2013
SC 06109131/06109132/06109133
Jim Rowe
More Reception Modes For The SiDRADIO & SDRs December 2013
Jim Rowe
A WiFi Server For $5 December 2014
Geoff Graham
A 5-Element Antenna For Better FM Reception October 2015
Leo Simpson
A 5-Element Antenna For Better DAB+ Reception November 2015
Leo Simpson
Mains Power Supply for Battery Valve Radio Sets SC 18108171/2/3/4 August 2017
Ian Robertson
Dead simple radio IF alignment with DDS; Kit(s): SC4425 September 2017
Nicholas Vinen
Build the Super-7 – a single-board AM radio receiver SC 06111171 November 2017
John Clarke
A $30 build-it yourself SDR kit; Kit(s): banggood.com November 2017
Jim Rowe
6-Element VHF TV Yagi to kill UHF 4G interference February 2018
Leo Simpson
An AM Radio Transmitter to build SC 06101181 March 2018
Nicholas Vinen & Jim Rowe
DAB+ Tuner with FM & AM and a touchscreen interface! January 2019
Duraid Madina & Nicholas Vinen
Build-it-yourself DAB+/FM/AM radio SC 06112181 February 2019
Duraid Madina & Nicholas Vinen; Kit(s): SC3834 & SC4904 & SC4896/7
The Super-9: a stereo FM Radio Receiver to build SC06109181/2/3/4/5 November 2019
John Clarke
The Super-9 FM Radio Receiver, Part 2 SC06109181/2/3/4/5 December 2019
John Clarke
Tunable HF Preamp for Software Defined Radio (SDR) SC 06110191 January 2020
Charles Kosina
H-Field Transanalyser for AM radio alignment & service SC 06102201 May 2020
Dr Hugo Holden
H-Field AM Radio Receiver Transanalyser, Part 2 SC 06102201 June 2020
Dr Hugo Holden
AM/FM/SW Single-Chip Digital Radio CSE200902A January 2021
Charles Kosina
Silicon Labs-based FM/AM/SW Digital Radio CSE210301C July 2021
Charles Kosina
0-110dB RF Attenuator SC CSE211003 July 2022
Charles Kosina; Kit(s): SC6420
Dual RF Amplifier SC CSE220602A May 2023
Charles Kosina; Kit(s): SC6592
Dynamic NFC/RFID Tag SC 06101231/2 July 2023
Tim Blythman; Kit(s): SC6747/8
2m Test Signal Generator SC 06107231 October 2023
Andrew Woodfield, ZL2PD
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07 COMPUTERS
End-of-FIle Indicator for Modems SC 7-1-288 February 1988
Greg Swain; See Circuit Notebook May 1988
A Line Filter For Your Computer SC 10101891 January 1989
Leo Simpson
Simple Computer Sound Repeater SC 07104891 January 1989
Leo Simpson & John Clarke
Build a LED Message Board March 1989
Don McKenzie
Build a LED Message Board April 1989
Don McKenzie
Biofeedback Monitor For Your PC May 1989
Jim Barbarello
Build a LED Message Board May 1989
Don McKenzie
Build a LED Message Board June 1989
Don McKenzie
Build an AT Tower Computer; Kit(s): Electronic Solutions August 1989
Greg Swain
1-Megabyte Printer Buffer October 1989
Don McKenzie
The Radfax Decoder SC 03111891 November 1989
John Clarke; Notes/errata: June 1990; Kit(s): Jaycar
Multi-Purpose I/O Board For IBM PCs; Kit(s): PC Computers March 1991
Graham Dicker
PC Voice Recorder SC 07107911 August 1991
Darren Yates
Build A Fax/Modem For Your Computer; Kit(s): PC Marketplace September 1991
Leo Simpson
Build A Talking Voltmeter For Your PC, Pt.1 SC 07110911 October 1991
Darren Yates; Notes/errata: December 1991
Build A Talking Voltmeter For Your PC, Pt.2 SC 07110911 November 1991
Darren Yates; Notes/errata: December 1991
Compact Digital Voice Recorder; Kit(s): Comma Corporation February 1992
Leo Simpson
The M.A.L. 4.03 Microcontroller Board; Pt.1 November 1992
Kit(s): Electronic System Designs
Barry Rozema
The M.A.L. 4.03 Microcontroller Board; Pt.2 December 1992
Kit(s): Electronic System Designs
Barry Rozema
The M.A.L. 4.03 Microcontroller Board; Pt.3 February 1993
Kit(s): Electronic System Designs
Barry Rozema
Alphanumeric LCD Demonstration Board SC 07106931 May 1993
Darren Yates; Kit(s): Altronics
Windows-Based Digital Logic Analyser; Pt.1; Kit(s): Jussi Jumppanen June 1993
Jussi Jumppanen
Windows-Based Digital Logic Analyser; Pt.2; Kit(s): Jussi Jumppanen July 1993
Jussi Jumppanen
The Southern Cross Computer; Kit(s): DIY Electronics August 1993
Peter Crowcroft & Craig Jones
Peripherals For The Southern Cross Computer; Kit(s): DIY Electronics December 1993
Peter Crowcroft & Craig Jones
Printer Status Indicator For PCs SC 07101941 January 1994
Darren Yates
Control Stepper Motors With Your PC SC 07201941 January 1994
Marque Crozman; Kit(s): Altronics, Jaycar
A PC-Based Nicad Battery Monitor SC 07103941 June 1994
Darren Yates
SmallTalk: A Tiny Voice Digitiser For The PC; Kit(s): RAT Electronics July 1994
Darren Yates
A Low-Cost MIDI Adaptor For Your PC Or Amiga July 1995
George Hansper
Audio Lab: A PC-Controlled Audio Test Instrument; Pt.1 August 1995
Kit(s): RSK Electronics
Roger Kent
Build The Mighty-Mite Powered Loudspeaker SC 01305951 August 1995
John Clarke
Audio Lab: A PC-Controlled Audio Test Instrument; Pt.2 September 1995
Kit(s): RSK Electronics
Roger Kent
Build A PC-Controlled Robot From Surplus Parts November 1995
Tony Mercer; Notes/errata: Refer Stepper Motor article, SC January 1994
Minilog: An 8-Bit Single-Channel Data Logger; Kit(s): MicroZed Computers July 1996
Anthony Mott
Build A Multimedia Sound System; Pt.1 SC 01110961 October 1996
Rick Walters; Notes/errata: February 1997, July 1997; Kit(s): Altronics, Jaycar
Build A Multimedia Sound System; Pt.2 SC 01110961 November 1996
Rick Walters; Notes/errata: February 1997, July 1997; Kit(s): Altronics, Jaycar
Computer Controlled Dual Power Supply; Pt.1 SC 04101971/04101972 January 1997
Rick Walters
Digi-Temp Monitors Eight Temperatures; Kit(s): Mantis Micro Products January 1997
Graham Blowes; Notes/errata: April 1997
PC-Controlled Moving Message Display; Kit(s): Oatley Electronics February 1997
John Western
Computer Controlled Dual Power Supply; Pt.2 SC 04101971/04101972 February 1997
Rick Walters
A Teletext Decoder For Your PC; Kit(s): Current Dynamics May 1997
Chris Schach & Braden Phillips
The Spacewriter: It Writes Messages In Thin Air SC 08305971 May 1997
John Clarke; Kit(s): Jaycar
A Flexible Interface Card For PCs SC 07107971 July 1997
Rick Walters; Notes/errata: August 1997, October 1997, November 1997
Kit(s): Jaycar KC5230
PC Card For Stepper Motor Control SC 07108971 August 1997
Rick Walters; Notes/errata: November 1997
PC Card For Controlling Two Stepper Motors SC 07208971 September 1997
Rick Walters; Notes/errata: November 1997
PC Controlled 6-Channel Voltmeter SC 07110971 October 1997
Mark Roberts; Kit(s): Softmark
A 2-Axis Robot With Gripper; Kit(s): Oatley Electronics December 1997
Graeme Matthewson
Stepper Motor Driver With Onboard Buffer SC 07109971 December 1997
Rick Walters; Notes/errata: January 1998; Kit(s): Jaycar
PC-Controlled Liquid Crystal Display Board SC 04104981 March 1998
Rick Walters
PC-Controlled 0-30kHz Sinewave Generator; Kit(s): Softmark April 1998
Mark Roberts
Simple I/O Card With Automatic Data Logging; Kit(s): Softmark August 1998
Mark Roberts
PC-Controlled Stress-O-Meter SC 07111981 October 1998
Rick Walters
Getting Going With BASIC Stamp SC 11301991 January 1999
Ross Tester & Bob Nicol; Kit(s): DSE, MicroZed
3-Channel Current Monitor With Data Logging; Kit(s): Parts from Softmark March 1999
Mark Roberts
Simple DIY PIC Programmer; Kit(s): Oatley Electronics March 1999
Michael Covington & Ross Tester
An X-Y Table With Stepper Motor Control; Pt.1 May 1999
Rick Walters & Ken Ferguson
An X-Y Table With Stepper Motor Control; Pt.2 June 1999
Rick Walters & Ken Ferguson
An X-Y Table With Stepper Motor Control; Pt.3 July 1999
Rick Walters
Build A PC Monitor Checker SC 04108991 August 1999
C. Roher; See also Circuit Notebook November 1999
Kit(s): Altronics K2720, Jaycar
An XYZ Table With Stepper Motor Control; Pt.4 SC 07208991/07208992 August 1999
Rick Walters
Voice Direct Speech Recognition Module SC 07109991 September 1999
Ross Tester; Notes/errata: October 1999; Kit(s): Adilam Electronics
An XYZ Table With Stepper Motor Control; Pt.5 SC 10108993 September 1999
Rick Walters
An XYZ Table With Stepper Motor Control; Pt.6 October 1999
Rick Walters
The PC Powerhouse SC 12112991 December 1999
Design by Barry Hubble; Notes/errata: January 2000; Kit(s): Jaycar
Parallel Port Interface Card; Kit(s): DSE K2805 January 2000
Peter Smith
Low-Cost AT Keyboard Translator May 2000
Kit(s): Control Electronics/MicroZed Computers
Steve Carroll & Bob Nicol
Parallel Port VHF FM Receiver; Kit(s): Softmark June 2000
Mark Roberts; Notes/errata: September 2000, March 2001
A Moving Message Display; Kit(s): Copyright 4D Systems (no longer available) July 2000
Atilla Aknar & Ross Tester
8-Channel PC Relay Board; Kit(s): Oatley Electronics September 2000
Ross Tester
Programmable Electronic Thermostat; Kit(s): Clinch Security Systems November 2000
Michael Jeffery; Notes/errata: Refer project June 1997
Driving An LCD From The Parallel Port; Kit(s): Jaycar December 2000
Peter Crowcroft & Frank Crivelli
PIC Programmer & TestBed SC 07101011 January 2001
Barry Hubble & Peter Smith; Notes/errata: March 2001, November 2006
Kit(s): DSE K3603
MIDI-Mate: A MIDI Interface For PCs SC 01201011 February 2001
Jim Rowe; Notes/errata: February 2003; Kit(s): Jaycar
Parallel Port PIC Programmer & Checkerboard LDDPP1 March 2001
David Deer; Notes/errata: April 2001, July 2001, Update July 2003
Kit(s): Jaycar KC5307
More-MIDI: A Simple MIDI Expansion Box SC 01103011 March 2001
Jim Rowe
A GPS Module For Your PC RCS PJGPS2K1 April 2001
Peter Johnson
A PC Games Port Tester June 2001
Trent Jackson
Build Your Own MP3 Jukebox; Pt.1 SC 07109011 September 2001
Peter Smith; Notes/errata: January 2002, April 2002, December 2002
Kit(s): Altronics
PC-Controlled Mains Switch SC 10109011 September 2001
Trent Jackson & Ross Tester; Notes/errata: April 2002, April 2006
Kit(s): Altronics
Build Your Own MP3 Jukebox; Pt.2 SC 07109011 October 2001
Peter Smith; Notes/errata: January 2002, April 2002, December 2002
Kit(s): Altronics
Programming Adapter For Atmel Microcontrollers SC 07110011 October 2001
Peter Smith; Notes/errata: December 2001, October 2002
Build A PC Infrared Transceiver SC 07112011 December 2001
Peter Smith; Kit(s): Altronics K2740, DSE K3608, Jaycar KC5323
PIC Fun And Games; Kit(s): eLabtronics, Altronics December 2001
Ross Tester
4-Way Event / Race / Anything Timer; Kit(s): eLabtronics February 2002
Ross Tester
The Itsy-Bitsy USB Lamp; Kit(s): Jaycar KC5328 March 2002
Stan Swan & Ross Tester
Digital Storage Logic Probe SC 04308021 August 2002
Trent Jackson & Ross Tester; Notes/errata: October 2002
Sound Card Interface For PC Test Instruments SC 04108021 August 2002
Peter Smith; See also Circuit Notebook May 2003
PC Parallel Port Wizard SC 07210021 October 2002
Trent Jackson
Build An AVR ISP Serial Programmer SC 07110021 October 2002
Stephen Davies & Peter Smith; Notes/errata: April 2003; Kit(s): Jaycar KC5340
A Windows-Based EPROM Programmer SC 07112021 November 2002
Jim Rowe; Notes/errata: Upgrade June 2004; Kit(s): DSE K3605 (no longer available)
A Windows-Based EPROM Programmer; Pt.2 SC 07112021 December 2002
Jim Rowe; Notes/errata: Upgrade June 2004; Kit(s): DSE K3605 (no longer available)
Reader/Programmer For Smart Cards SC 07201031 January 2003
David Freeman; Notes/errata: February 2003, March 2003; Kit(s): Jaycar KC5342
A Windows-Based EPROM Programmer; Pt.3 SC 07112021 February 2003
Jim Rowe; Notes/errata: Upgrade June 2004; Kit(s): DSE K3605 (no longer available)
The PICAXE: Pt.2: A Shop Door Minder March 2003
Stan Swan
Three Do-It-Yourself PIC Programmer Kits April 2003
Kit(s): Ozitronics/DIY Electronics K81, K149, K160
Jim Rowe
The PICAXE, Pt.3: Heartbeat Simulator April 2003
Stan Swan
Printer Port Hardware Simulator SC 07105031 May 2003
Jim Rowe; Notes/errata: re PCB number: June 2003
Kit(s): DSE K3609 (no longer available)
The PICAXE, Pt.4: Motor Controller May 2003
Kit(s): Oatley Electronics (www.oatleyelectronics.com)
Stan Swan
The PICAXE, Pt.5: A Chookhouse Door Controller June 2003
Stan Swan
PICAXE-Controlled Telephone Intercom June 2003
David Lincoln
PICAXE-08 Port Expansion June 2003
David Lincoln
Smart Card Reader & Programmer SC 07107031, EPE 567 July 2003
Peter Smith; Notes/errata: September 2006; Kit(s): Jaycar KC5361
The PICAXE, Pt.6: Data Communications July 2003
Stan Swan
Updating The PIC Programmer & Checkerboard July 2003
Peter Smith; Notes/errata: Refer project March 2001 & December 2005
PC Infrared Remote Receiver SC 07108031 August 2003
Peter Smith; Notes/errata: September 2003, November 2003
Kit(s): Altronics K2755, Jaycar KC5366
The PICAXE, Pt.7: Get That Clever Code Purring August 2003
Stan Swan
Portable PIC Programmer SC 07109031 September 2003
Peter Smith; Notes/errata: July 2005, February 2006
Kit(s): Altronics K9505, DSE K3610, Jaycar KC5367
The PICAXE, Pt.8: A Datalogger & Sending It To Sleep September 2003
Stan Swan
The PICAXE, Pt.8: The 18X Series November 2003
Stan Swan
The PICAXE, Pt.9: Keyboards 101 December 2003
Stan Swan
PICAXE-18X 4-Channel Datalogger January 2004
Clive Seager; Notes/errata: August 2004
Simple Supply Rail Monitor For PCs SC 07102041, EPE 576 February 2004
Jim Rowe; Kit(s): Altronics K2895
PICAXE-18X 4-Channel Datalogger; Pt.2 February 2004
Clive Seager; Notes/errata: August 2004
PICAXE-18X 4-Channel Datalogger; Pt.3 March 2004
Clive Seager; Notes/errata: August 2004
PC/PICAXE Interface For UHF Remote Control April 2004
John Holliday; Notes/errata: Refer project June 2003
Wireless Parallel Port SC 07105041 May 2004
Nenad Stojadinovic
Automating PC Power-Up June 2004
Peter Smith
Upgraded Software For The EPROM Programmer; Kit(s): DSE K3605 June 2004
Jim Rowe; Notes/errata: Programmer refer November 2002-February 2003
USB Power Injector SC 07110041 October 2004
Jim Rowe; Kit(s): Altronics K2910, Jaycar KC5399
Simon Says . . .; Kit(s): picaxe.co.uk & microzed.com.au January 2005
Clive Seager
AVR200 Single Board Computer, Pt.1; Kit(s): www.jedmicro.com.au June 2005
Ed Schoell
AVR200 Single Board Computer, Pt.2; Kit(s): www.jedmicro.com.au July 2005
Ed Schoell
Serial LCD Driver; Kit(s): Oatley Electronics K221 August 2005
Graeme Matthewson; Notes/errata: September 2005
Dead Simple USB Breakout “Box” October 2005
Stan Swan
Serial I/O Controller & Analog Sampler SC 07111051, EPE 652 November 2005
Trent Jackson; Notes/errata: December 2005, January 2006; Kit(s): DSE K3090
PIC In-Circuit Programming Add-On Adaptor SC 07112051, EPE 665 December 2005
Keith Anderson
Multi-Throttle Control For PC Flight Simulators August 2006
Robert Gott
Turn an Old Xbox Into A $200 Multimedia Player September 2006
Julian Edgar
PICAXE Net Server, Pt.1; Kit(s): microzed.com.au September 2006
Clive Seager
PICAXE Net Server, Pt.2; Kit(s): microzed.com.au October 2006
Clive Seager
PICAXE Net Server, Pt.3; Kit(s): microzed.com.au November 2006
Clive Seager
PICAXE Net Server, Pt.4; Kit(s): microzed.com.au December 2006
Clive Seager
Playback Adaptor For CD-ROM Drives SC 07112071, EPE 740 November 2007
Mauro Grassi; Notes/errata: December 2007; Kit(s): Jaycar KC5459
Playback Adaptor For CD-ROM Drives; Pt.2 SC 07112071, EPE 740 December 2007
Mauro Grassi; See also Circuit Notebook, July 2008
Kit(s): Jaycar KC5459
Low-Cost dsPIC/PIC Programmer SC 07105081/07105082, EPE 754/755 May 2008
Mauro Grassi; Notes/errata: June 2008, December 2011; Kit(s): Jaycar KC5467
USB Power Injector For External Hard Drives SC 07110041 June 2008
Greg Swain; Notes/errata: July 2008
USB Printer Share Switch SC 07104091, EPE 796 April 2009
Jim Rowe & Greg Swain
WIB: Web Server In A Box, Pt.1 SC 07111092, EPE 830 November 2009
Mauro Grassi
Notes/errata: December 2009, January 2010, January 2012 (FAQs April 2010)
Kit(s): Altronics K6210 Jaycar KC5489
WIB: Web Server In A Box, Pt.2 SC 07111092, EPE 830 December 2009
Mauro Grassi
Notes/errata: December 2009, January 2010, January 2012 (FAQs April 2010)
Kit(s): Altronics K6210 Jaycar KC5489
A Multi-Function GPS Car Computer, Pt.1 SC 05101101 January 2010
Geoff Graham; Kit(s): Altronics K1133 (discontinued) - see Ask SC April 2015 p92
Web Server In a Box, Pt.3 SC 07111092, EPE 830 January 2010
Mauro Grassi
Notes/errata: December 2009, January 2010, January 2012 (FAQs April 2010)
Kit(s): Altronics K6210 Jaycar KC5489
Internet Time Display Module For The WIB SC 07102101, EPE 836 February 2010
Mauro Grassi
A Multi-Function GPS Car Computer, Pt.2 SC 05101101 February 2010
Geoff Graham; Kit(s): Altronics K1133 (discontinued) - see Ask SC April 2015 p92
Arduino-Compatible I/O Controller; Kit(s): Ocean Controls KTA-223 April 2010
Greg Radion and Ross Tester
PICAXE Project Development System; Kit(s): Oatley K277 July 2010
Jeff Monegal
Build A GPS Boat Computer SC 05101101 October 2010
Geoff Graham; Kit(s): Altronics K1143
The Maximite Computer, Pt.1 SC 06103111 March 2011
Geoff Graham; Notes/errata: Q&A April 2012; Kit(s): Altronics K9550
The Maximite Computer, Pt.2 SC 06103111 April 2011
Geoff Graham; Notes/errata: Q&A April 2012; Kit(s): Altronics K9550
The Maximite Computer, Pt.3 SC 06103111 May 2011
Geoff Graham; Notes/errata: Q&A April 2012; Kit(s): Altronics K9550
USB Stereo Recording & Playback Interface SC 07106111 June 2011
Jim Rowe; Notes/errata: July 2011
The MiniMaximite Computer SC 07111111 November 2011
Geoff Graham; Kit(s): Altronics K9552 Jaycar KC5505
Colour MaxiMite Microcomputer, Pt.1 SC 07109121 September 2012
Geoff Graham; Kit(s): Altronics K9555
Colour MaxiMite Microcomputer, Pt.2 SC 07109121 October 2012
Geoff Graham; Kit(s): Altronics K9555
Hacking A Mini Wireless Webserver, Pt.1 November 2012
Andrew Snow
Hacking A Mini Wireless Web Server, Pt.2 December 2012
Andrew Snow and Nicholas Vinen
LF-HF Up-Converter For VHF/UHF Digital TV Dongles SC 07106131 June 2013
Jim Rowe
USB-To-RS232C Serial Interface April 2014
Jim Rowe
The Micromite: An Easily Programmed Microcontroller, Pt.1 May 2014
Geoff Graham
The Micromite: An Easily Programmed Microcontroller, Pt.2 June 2014
Geoff Graham
Raspberry Pi Temperature/Humidity/Pressure Monitor Pt.1 January 2016
Greg Swain
Micromite LCD BackPack With Touch-Screen Display SC 07102121/07102122 February 2016
Geoff Graham; Kit(s): Silicon Chip
Touch-Screen Boat Computer With GPS SC 07102122 April 2016
Geoff Graham; Kit(s): Silicon Chip (Micromite LCD BackPack)
4-Input Temperature Sensor PCB For The Raspberry Pi SC 24104161 May 2016
Nicholas Vinen & Greg Swain
Micromite Plus & The Explore 64 Module SC 07108161 August 2016
Geoff Graham; Kit(s): Silicon Chip
Add A 7-Inch Touchscreen To Your Raspberry Pi August 2016
Greg Swain
Micromite Plus Explore 100 Module, Pt.2 SC 07109161 October 2016
Geoff Graham; Kit(s): www.rictech.nz/micromite-products
Micromite Plus LCD BackPack 07110161 November 2016
Nicholas Vinen; Kit(s): www.siliconchip.com.au
Arduino-Based Digital Theremin; Kit(s): Jaycar December 2016
Bao Smith
Programming the ATtiny85 With An Arduino January 2017
Lawrence Billson
Giving the Ultrasonic Theremin A Volume Control; Kit(s): Jaycar January 2017
Bao Smith
Micromite BackPack V2 with touch-screen and USB SC 07104171 May 2017
Geoff Graham; Kit(s): SILICON CHIP
USB Port Protector – just in case! SC 07105181 May 2018
Nicholas Vinen; Kit(s): SC4574
Micromite LCD BackPack Version 3 SC 07106191 August 2019
Tim Blythman; Kit(s): Cat SC5082
Ultrabrite LED Bicycle Light SC 16109191 September 2019
Daniel Doyle
Solving one of Home Automation’s biggest beefs! October 2019
Kit(s): Altronics K9655/K9660A
Tim Blythman
The all-new Colour Maximite 2 SC 07107201 July 2020
Geoff Graham & Peter Mather; Kit(s): Silicon Chip, Rictech, Micromite Org, CircuitGizmos
The Colour Maximite 2 – part two SC 07107201 August 2020
Geoff Graham & Peter Mather; Kit(s): Silicon Chip, Rictech, Micromite Org, CircuitGizmos
Second Generation Colour Maximite 2 – Part 1 SC 07108211 August 2021
Geoff Graham & Peter Mather
Second Generation Colour Maximite 2 – Part 2 SC 07108211 September 2021
Geoff Graham & Peter Mather
VGA PicoMite SC 07107221 July 2022
Geoff Graham; Kit(s): SC6417
Raspberry Pi Pico W BackPack SC 07101221 January 2023
Tim Blythman; Kit(s): SC6625
The WebMite August 2023
Geoff Graham
Pico Digital Video Terminal SC 07112231 March 2024
Tim Blythman; Kit(s): SC6917
Pico Digital Video Terminal, Pt2 SC 07112231-3 April 2024
Tim Blythman; Kit(s): SC6917
ESP32-CAM BackPack SC 07102241 April 2024
Tim Blythman
Micromite Explore-40 SC 07106241 October 2024
Tim Blythman; Kit(s): SC6991
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08 GAMES AND TOYS
Build a Plasma Display SC 0820888 August 1988
Leo Simpson
Electronic Fish Bite Detector OE42F September 1988
Branco Justic; Notes/errata: February 1989
The Incredible Vader Voice SC 08-1-0888-1 September 1988
Darth Junior; Kit(s): DSE
Electronic Pools/Lotto Selector SC 08105891/2 May 1989
Malcolm Young; Notes/errata: June 1989
The Incredible Hot Canaries SC 08112891 February 1990
John Clarke
Workout Timer For Aerobics Classes SC 08102901 March 1990
Steve Calder
Build An Elegant Electronic Die SC 08107901 July 1990
Darren Yates; Kit(s): DSE K3532
Horace The Electronic Cricket SC 08106901 August 1990
John Clarke; Kit(s): Jaycar
Build The SurfSound Simulator SC 08109901 October 1990
Darren Yates
A Really Snazzy Egg Timer SC 08110901 November 1990
Darren Yates
The Big Escape SC 08112901 December 1990
Darren Yates
Have Fun With The Fruit Machine SC 08101911 January 1991
Bruce Baguley
Build A Two-Tone Alarm Module SC 08111901 January 1991
Darren Yates; Kit(s): Jaycar
Simple 12/24V Light Chaser SC 08106911 April 1991
Darren Yates; Kit(s): Jaycar
Build The Executive Thingie SC 08103921 April 1992
Darren Yates
Build The Number Cruncher SC 08110921 December 1992
Greig Sheridan
Build The Electronic Cockroach SC 08310921 February 1993
John Clarke
Test Yourself On The Reaction Trainer SC 08312921 March 1993
John Clarke
A Low-Cost Quiz Game Adjudicator SC 08106931 July 1993
Darren Yates; See Ask SC August 93
Remote-Controlled Electronic Cockroach SC 08307931/08307932 September 1993
John Clarke
Build A 1-Chip Melody Generator ZA-1324 December 1993
Bernie Gilchrist; Kit(s): DSE
Build A Novel LED Torch SC 08302941 February 1994
John Clarke
Build A Simple LED Chaser SC 08103941 March 1994
Darren Yates; Kit(s): Altronics, DSE, Jaycar
Dual Electronic Dice SC 08105941 May 1994
Darren Yates; Kit(s): DSE
Clifford - A Pesky Little Electronic Cricket SC 08112941 December 1994
Darren Yates; Notes/errata: July 2005; Kit(s): DSE K3533, Jaycar KC5178
The Incredible Vader Voice SC 08310951 September 1995
John Clarke; Kit(s): DSE K3511, Jaycar
KnightRider Bi-directional LED Chaser SC 08105961 May 1996
Rick Walters; Kit(s): DSE K3168, Jaycar KC5204
Build A Laser Pistol & Electronic Target SC 08112961/08112962 December 1996
Rick Walters
The Spacewriter: It Writes Messages In Thin Air SC 08305971 May 1997
John Clarke; Kit(s): Jaycar
The Flickering Flame For Stage Work SC 11410971 October 1997
Ross Tester; Kit(s): Jaycar KC5234
Build A Plasma Display Or A Jacob's Ladder September 1998
Kit(s): Oatley Electronics K20 & K120 (discontinued)
Branco Justic
The Christmas Star SC 08211981 November 1998
Les Grant; Kit(s): Jaycar KC5253
Build Your Own Poker Machine SC 08112981 November 1998
Andersson Nguyen
Build Your Own Poker Machine; Pt.2 SC 08112981 December 1998
Andersson Nguyen
LEDS Have Fun; Kit(s): DSE K3167 February 1999
Leo Simpson; Notes/errata: April 1999
The Line Dancer Robot SC 11385991 May 1999
Andersson Nguyen; Notes/errata: August & September 1999; Kit(s): Jaycar
Heart Of LEDs SC 08205991 May 1999
Les Grant; Kit(s): Jaycar
The Hexapod Robot; Kit(s): RobotOz July 1999
Ross Tester
Multi-Colour LED Christmas Tree; Kit(s): Jaycar KC5280 November 1999
Les Grant; Notes/errata: December 1999
Build A LED Dice SC 08105001 May 2000
Doug Jackson; Notes/errata: July 2000
Come In Spinner; Kit(s): Copyright 4D Systems (no longer available) August 2000
Atilla Aknar & Ross Tester
Santa & Rudolph Christmas Lights Display SC 16111001 November 2000
John Clarke & Ross Tester; Kit(s): DSE K3003, Jaycar KC5302
A Sun-Seeking Sunflower; Kit(s): DSE K3563 March 2001
Craig Maynard & Ross Tester
PIC Fun And Games; Kit(s): eLabtronics, Altronics December 2001
Ross Tester
4-Way Event / Race / Anything Timer; Kit(s): eLabtronics February 2002
Ross Tester
PIC-Controlled 32-LED Knightrider SC 08105021 May 2002
John Clarke; Kit(s): Altronics K5815
Build The Decision Maker SC 08112021 December 2002
Trent Jackson and Ross Tester
Test Your Reflexes With A Digital Reaction Timer SC 04106031, EPE 569 June 2003
Jim Rowe; Kit(s): Jaycar KC5360
Jazzy Heart Electronic Jewellery SC 08108031, EPE 554 August 2003
Thomas Scarborough
PICAXE The Red-Nosed Reindeer; Kit(s): picaxe.co.uk & microzed.com.au September 2004
Clive Seager
Simon Says . . .; Kit(s): picaxe.co.uk & microzed.com.au January 2005
Clive Seager
Build A Professional Sports Scoreboard, Pt.1; Kit(s): Jaycar KC5408 March 2005
Jim Rowe; See August 2005 for Enhanced Model
Build A Professional Sports Scoreboard, Pt.2; Kit(s): Jaycar KC5408 April 2005
Jim Rowe; See August 2005 for Enhanced Model
Pro Scoreboard, Pt III; Kit(s): Jaycar KC5408 May 2005
Jim Rowe; See August 2005 for Enhanced Model
Starship “Enterprise” Door Sounder; Kit(s): Jaycar KC5423 June 2006
Jim Rowe
The Galactic Voice SC 08109061/08109062, EPE 674 September 2006
John Clarke; Notes/errata: October 2006; Kit(s): Jaycar KC5431
Programmable Christmas Star EPE 692 November 2006
David Meiklejohn; Kit(s): www.gooligum.com.au
Build A Jacob's Ladder SC 11104071 April 2007
Leo Simpson; Notes/errata: June 2007; Kit(s): Jaycar KC5445
Spectacular Bike-Wheel POV Display SC 16109071, EPE 711 September 2007
Ian Paterson
Oscar: Electronic Noughts & Crosses Game SC 08110071, EPE 705 October 2007
Brian Healy
Let’s Get Quizzical: A Quiz Game With A Difference SC 08110111 October 2011
John Clarke; Notes/errata: December 2011, January 2012
Interplanetary Voice For Alien Sound Effects SC 08102121 March 2012
John Clarke
Crazy Cricket Or Freaky Frog SC 08109121 June 2012
John Clarke; Notes/errata: July 2012; Kit(s): Jaycar KC5510 Altronics K1109
Improved Jacob's Ladder SC 05110121 February 2013
Leo Simpson; Kit(s): Jaycar KC5520 Altronics K4030 (ignition only)
LED Ladybird: An Eye-Catching Electronic Beetle SC 08103131 April 2013
John Clarke
PC Birdies: Bird Song Without The Mess SC 08104131 August 2013
John Clarke; Kit(s): Altronics K1117
Build An Electronic Bellbird SC 08112131 December 2013
John Clarke; Kit(s): Altronics K1128
Beginner's Project: the PicoMiniCube; Kit(s): PicoKit #119 January 2015
Design by Philip Tallents, article by Ross Tester
One hour project: Kelvin – the very clever cricket SC 08109171 October 2017
John Clarke
A Useless Box SC 08111181 December 2018
Les Kerr & Ross Tester
Build your own Gamer’s Seat with Four DoF SC 11109191/11109192 September 2019
Gianni Pallotti
The Night Keeper Lighthouse SC 08110201 September 2020
Andrew Woodfield
Recreating Arcade Pong SC 08105211 June 2021
Dr Hugo Holden
Nano Pong using an 8-pin PIC SC 08105212 August 2021
Tim Blythman
Raspberry Pi Pico BackPack SC 07101221 March 2022
Tim Blythman; Kit(s): SC6075
Slot Machine SC 08105221 May 2022
Gianni Palotti
Noughts & Crosses Machine, Pt1 SC 08111221/2 January 2023
Dr Hugo Holden
Noughts & Crosses, Part 2 SC 08111221/2 February 2023
Dr Hugo Holden
Songbird SC 08103231 May 2023
Andrew Woodfifield; Kit(s): SC6633
Pico Gamer SC 08104241 April 2024
Geoff Graham; Kit(s): SC6911-3
Skill Tester 9000, Pt1 SC 08101241 April 2024
Phil Prosser
Skill Tester 9000, Part 2 SC 08101241 May 2024
Phil Prosser
Dual Mini LED Dice SC 08103241-2 August 2024
Nicholas Vinen; Kit(s): SC6849, SC6961
FlexiDice SC 08107241-2 November 2024
Tim Blythman; Kit(s): SC7361
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09 MODEL RAILWAY/RADIO CONTROL
Walkaround Throttle for Model Railroads SC 9-1-488 April 1988
Leo Simpson & John Clarke; Notes/errata: August 1995
Walkaround Throttle for Model Railroads, Pt.2 SC 9-1-488 May 1988
Leo Simpson & John Clarke; Notes/errata: Leo Sim
Build a Diesel Sound Generator SC 09-1-0988-2 December 1988
John Clarke & Greg Swain
LED Flasher For Model Railways SC 09102891 February 1989
Malcolm Young
Low-Cost Model Train Controller; Kit(s): Electronic Toy Services November 1990
Greg Swain
Build The SteamSound Simulator SC 09104911 April 1991
Darren Yates
Fluorescent Light Simulator For Model Railways May 1991
Kit(s): Electronic Toy Services
Darren Yates
SteamSound Simulator Mk.II SC 09110911 October 1991
Darren Yates & Leo Simpson; Kit(s): Jaycar
Infrared Remote Control For Model Railroads, Pt.1 April 1992
SC 91488 / 15204921/ 15204922
Leo Simpson & John Clarke
Notes/errata: Ref SC April 1996: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs
Infrared Remote Control For Model Railroads, Pt.2 May 1992
SC 91488 / 15204921/ 15204922
Leo Simpson & John Clarke
Notes/errata: Ref SC April 1996: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs
Infrared Remote Control For Model Railroads, Pt.3 June 1992
SC 91488 / 15204921/ 15204922
Leo Simpson & John Clarke
Notes/errata: Ref SC April 1996: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs
Track Tester For Model Railroads SC 09308921 September 1992
Leo Simpson & John Clarke
Diesel Sound Simulator For Model Railroads SC 09111921 December 1992
Darren Yates; Kit(s): DSE, Jaycar
Three Simple Projects For Model Railroads; Kit(s): Force Electronics February 1993
Terry Mowles; Notes/errata: May 1993
Build A Single Chip Message Recorder SC 01104931 July 1993
Darren Yates; See also Circuit Notebook September 1997
Simple Low-Voltage Speed Controller SC 09111931 January 1994
Darren Yates; Kit(s): DSE K3070
Level Crossing Detector For Model Railways SC 15203931 March 1994
John Clarke; Kit(s): DSE, Jaycar
Sound & Lights For Level Crossings SC 15203932 April 1994
John Clarke; Kit(s): DSE, Jaycar
Two Simple Servo Driver Circuits SC 09105941/09105942 May 1994
Nenad Stojadinovic; Kit(s): Altronics
Steam Train Whistle & Diesel Horn Simulator SC 09305941/05207941 July 1994
John Clarke; Kit(s): Altronics, DSE, Jaycar
A Train Detector For Model Railways SC 09306951/09306952/09306953 June 1995
John Clarke; Notes/errata: September 1995; Kit(s): Jaycar
Run Two Trains On A Single Track; Kit(s): Oatley Electronics July 1995
Branco Justic & Leo Simpson
Railpower MkII: A Walk-Around Throttle For Model Railways; Pt.1 September 1995
SC 09109951/09109952
Rick Walters; Notes/errata: December 1995; Kit(s): Jaycar
Notes On The Train Detector For Model Railways SC 09306951/09306952/09306953 September 1995
Leo Simpson; Kit(s): Jaycar
Railpower MkII: A Walk-Around Throttle For Model Railways; Pt.2 October 1995
SC 09109951/09109952
Rick Walters; Notes/errata: December 1995; Kit(s): Jaycar
IR Remote Control For The Railpower Mk.2 SC 09101961 January 1996
Rick Walters
Replacement Module For The SL486 & MV601 SC 09103961 April 1996
Rick Walters
Notes/errata: Ref: IR RC For Model Railroads, SC April-May 92; Remote Volume Control For HiFi, SC May-June 93; Stereo Preamplifier With IR RC, SC Sept-Nov 93
A Fast Clock For Railway Modellers SC 09112961 December 1996
Leo Simpson; See Ask SC May 1997 for Master/Slave Modification
Signalling & Lighting For Model Railways 3ASIGNAL/CBLGEN March 1997
Jeff Monegal; Kit(s): CTOAN Electronics
Train Controller For Model Railway Layouts SC 09104971 April 1997
Rick Walters; Notes/errata: August 1999; Kit(s): DSE
Traffic Lights For A Model Intersection SC 09205971 May 1997
Rick Walters; Kit(s): DSE
Manual Control Circuit For A Stepper Motor SC 09106971 June 1997
Rick Walters; Kit(s): DSE, Jaycar
Points Controller For Model Railways SC 09107971 July 1997
Rick Walters; Kit(s): Jaycar
Command Control For Model Railways; Pt.1 SC 09102981/09103981 January 1998
Barry Grieger; Notes/errata: March & June 1999; Kit(s): Jaycar
Command Control For Model Railways; Pt.2 SC 09102981/09103981 February 1998
Barry Grieger; Notes/errata: March & June 1999; Kit(s): Jaycar
Command Control For Model Railways; Pt.3 SC 09102981/09103981 March 1998
Barry Grieger; Notes/errata: March & June 1999; Kit(s): Jaycar
Command Control For Model Railways; Pt.4 SC 09102981/09103981 May 1998
Barry Grieger; Notes/errata: March & June 1999; Kit(s): Jaycar
Command Control For Model Railways; Pt.5 SC 09102981/09103981 June 1998
Barry Grieger; Notes/errata: March & June 1999 ; Kit(s): Jaycar
Command Control Decoder For Model Railways SC 09102991/09102992 February 1999
Cam Fletcher
Build The Railpower; Pt.1 SC 09310991 October 1999
John Clarke & Leo Simpson
Railpower Model Train Controller; Pt.2 SC 09310991 November 1999
John Clarke & Leo Simpson
Railpower Model Train Controller; Pt.3 SC 09310991 December 1999
John Clarke & Leo Simpson
Glowplug Driver For Powered Models; Kit(s): Oatley Electronics March 2000
Ross Tester
50A Motor Speed Controller For Models; Kit(s): Oatley Electronics May 2000
Ross Tester & Branco Justic
Li'l Pulser Train Controller SC 09102011 February 2001
John Clarke & Leo Simpson; Kit(s): DSE, Jaycar KC5304
Remote Control For A Model Train Layout July 2004
Greg Hunter
Railpower Model Train Controller SC 09109081/09109082, EPE 773/774 September 2008
John Clarke; Notes/errata: December 2010; Kit(s): Altronics K6015
Railpower Model Train Controller, Pt.2 SC 09109081/09109082, EPE 773/774 October 2008
John Clarke; Notes/errata: December 2010; Kit(s): Altronics K6015
12V Speed Controller/Lamp Dimmer SC 05111081, EPE 781, 05car111 November 2008
Leo Simpson; Kit(s): Altronics K6008, Jaycar KC5382
Multi-Function Remote-Controlled Lamp Dimmer SC 10104092, EPE 799 April 2009
Mauro Grassi; Notes/errata: May 2009
UHF Remote 2-Channel 230VAC Power Switch; Kit(s): Oatley K231B May 2009
Branco Justic & Ross Tester; Notes/errata: July 2009
One-Of-Nine Switch Position Indicator SC 04112091/04112092, EPE 827/828 December 2009
John Clarke; Notes/errata: January 2010; Kit(s): Altronics K6013
Dorji 433MHz Wireless Data Modules January 2012
Stan Swan
10A DCC Booster For Model Railways; Kit(s): Oatley K298 July 2012
Jeff Monegal
Digital Sound Effects Generator SC 09109121 September 2012
Nicholas Vinen; Notes/errata: June 2013
Reverse Loop Controller For DCC Model Railways SC 09110121 October 2012
Jeff Monegal
Automatic Points Controller For Model Railways SC 09103131/09103132/09103133 March 2013
Jeff Monegal
Capacitor Discharge Unit For Twin-Coil Points Motors SC 09203131 March 2013
Jeff Monegal
Li'l Pulser Model Train Controller, Mk.2 SC 09107131/09107132/09107133 July 2013
John Clarke
Li'l Pulser Mk2: Fixing The Switch-Off Lurch SC 09107134 January 2014
Nicholas Vinen & Leo Simpson
The Stationmaster: walk-around PWM train control SC 09103171/2 March 2017
Design by Bob Sherwood
Steam loco or diesel engine sound effects module SC 09106181 September 2018
John Clarke
Arduino-based programmer for DCC Decoders 09107181 October 2018
Tim Blythman
Add DCC to your model train layout with Arduino! SC 09207181 / SC 09107181 January 2020
Tim Blythman
Model Railway Level Crossing SC 09108211 July 2021
Les Kerr
Model Railway Carriage Lights SC 09109211 November 2021
Les Kerr
Railway Semaphore Signal SC 09103221 April 2022
Les Kerr
Automatic Train Controller SC 09109221/2 October 2022
Les Kerr
Model Railway Turntable SC 09103231/2 March 2023
Les Kerr
Railway Carriage Uncoupler SC 09105231 July 2023
Les Kerr
Model Railway Points Controller SC 09101241/2 February 2024
Les Kerr
----------------------------------------------------------------------------------------------
10 MAINS POWER CONTROL
Build the Speedi-Watt SC 1011287 December 1987
Leo Simpson; See Ask SC March 1988 for fluoro mod
Build the Party Light May 1988
Stephen David
Build the Discolight 10106881 July 1988
John Clarke & Leo Simpson; See Ask SC October 1995
Kit(s): Altronics, DSE, Jaycar
Building the Discolight, Pt.2 SC 1010688 August 1988
Greg Swain & John Clarke; See Ask SC October 1995
Kit(s): Altronics, DSE, Jaycar
A Line Filter For Your Computer SC 10101891 January 1989
Leo Simpson
Build The Touch-Lamp Dimmer SC 11106891 June 1989
Leo Simpson; Notes/errata: October 1989
Universal Temperature Controller OETC89 June 1989
Branco Justic & Jeff Monegal; Kit(s): Oatley Electronics
Extension For The Touch-Lamp Dimmer SC 10107892 July 1989
Leo Simpson; Notes/errata: September 1989
Speed Controller For Ceiling Fans January 1990
John Clarke
Load Protector For Power Supplies SC 04204901 June 1990
John Clarke & Leo Simpson
Universal Safety Timer For Appliances SC 10107901 August 1990
John Clarke
Alarm Power Supply With Battery Backup ZA-1454 September 1990
Greg Swain; Kit(s): DSE K8402
Dimming Controls For The Discolight SC 10111902 October 1990
John Clarke
Four-Channel Lighting Desk, Pt.1 SC 10106911/10106912 June 1991
John Clarke & Leo Simpson; Kit(s): DSE
Four-Channel Lighting Desk, Pt.2 SC 10106911/10106912 July 1991
John Clarke & Leo Simpson; Kit(s): DSE
Ultrasonic Switch For Mains Appliances ACT ONE September 1991
Jeff Monegal; Kit(s): CTOAN Electronics
Heavy-Duty 5A Drill Speed Controller SC 10109921 September 1992
Leo Simpson; Notes/errata: November 1992; Kit(s): Altronics, DSE, Jaycar
Modifications To The Drill Speed Controller SC 10109921/10109922 November 1992
Leo Simpson; Kit(s): Altronics, DSE, Jaycar
High-Power Dimmer For Incandescent Lights SC 10107941 August 1994
Marque Crozman
A Photographic Timer For Darkrooms SC 10304951 April 1995
John Clarke; Notes/errata: November 1996; Kit(s): DSE, Jaycar
The Rain Brain Automatic Sprinkler Controller; Kit(s): Mantis Micro Products January 1996
Graham Blowes
Electronic Starter For Fluorescent Lights SC 10308961 August 1996
John Clarke; Notes/errata: October 1996; Kit(s): DSE
Power Control With A Light Dimmer October 1996
Leo Simpson
How To Repair Domestic Light Dimmers November 1996
Leo Simpson
Heavy Duty 10A 240VAC Motor Speed Controller SC 10311971 November 1997
John Clarke; Notes/errata: January 1998; Kit(s): DSE K3087, Jaycar
A Regulated Supply For Darkroom Lamps SC 10107971 November 1997
Rick Walters
Power Supply For Stepper Motor Cards SC 10112971 December 1997
Rick Walters; Notes/errata: Refer Projects July-September & December 1997
Kit(s): Jaycar
Universal Stepper Motor Controller SC 10106981 June 1998
Rick Walters; Kit(s): Jaycar
Build A Heat Controller SC 10307981 July 1998
John Clarke
A Regulated 12V DC Plugpack December 1998
Ross Tester
Build A Multi-Sector Sprinkler Controller; Kit(s): Ned Stojadinovic February 2000
Ned Stojadinovic
Proximity Switch For 240VAC Lamps; Kit(s): Futurlec August 2000
Allan Bonnard & Leo Simpson
8-Channel PC Relay Board; Kit(s): Oatley Electronics September 2000
Ross Tester
PC-Controlled Mains Switch SC 10109011 September 2001
Trent Jackson & Ross Tester; Notes/errata: April 2002, April 2006
Kit(s): Altronics
Touch And/Or Remote-Controlled Light Dimmer; Pt.1 SC 10101021 January 2002
John Clarke; Notes/errata: August 2002; Kit(s): Altronics K6030, Jaycar KC5324
Touch And/Or Remote-Controlled Light Dimmer; Pt.2 SC 10101021 February 2002
John Clarke; Notes/errata: August 2002; Kit(s): Altronics K6030, Jaycar KC5324
Automatic Single-Channel Light Dimmer SC 10104021/10104022/10104023 April 2002
John Clarke
Automatic Single-Channel Light Dimmer; Pt.2 SC 10104021/10104022/10104023 May 2002
John Clarke
Stepper Motor Controller; Kit(s): Oatley Electronics May 2002
Ross Tester; Notes/errata: June 2002
Speed Controller For Universal Motors SC 10110021 October 2002
John Clarke; Notes/errata: November 2002, December 2002, January 2003, May 2003
Kit(s): Jaycar KC5339
240V Mains Filter For Hifi Systems; Kit(s): soundlabsgroup.com.au February 2003
Ross Tester
Sunset Switch For Security & Garden Lighting SC 10106031 June 2003
John Clarke; Notes/errata: July 2003; Kit(s): Altronics K6025, Jaycar KC5359
PowerUp: Turns Peripherals On Automatically SC 10107031, EPE 557 July 2003
John Clarke; Kit(s): Altronics K6046, Jaycar KC5363
USB-Controlled Power Switch SC 10111041 November 2004
Jim Rowe; Notes/errata: December 2004; Kit(s): Jaycar KC5401
Bidirectional Motor Speed Controller; Kit(s): Ozitronics K166 December 2004
Frank Crivelli; Notes/errata: July 2005
The Coolmaster Fridge/Freezer Temperature Controller SC 10108051, EPE 675 June 2005
Jim Rowe; Notes/errata: September 2005; Kit(s): Jaycar KC5413
Remote-Controlled Automatic Table Lamp Dimmer SC 10107051 July 2005
John Clarke; Notes/errata: September 2005; Kit(s): DSE K3040
Ceiling Fan Timer SC 10110051 October 2005
John Clarke
Remote Mains Relay Box; Kit(s): DSE K3041 May 2006
Bill De Rose & Ross Tester; See Remote Mains Relay Mk2 January 2009
Programmable Analog On-Off Controller; Kit(s): Ocean Controls July 2006
Greg Radion
PC Controlled Mains Switch Mk.2 SC 10107061/10107062 July 2006
Trent Jackson
Stop Those Zaps From Double-Insulated Equipment July 2006
John Clarke
High-Power Reversible DC Motor Speed Controller EPE 863/864 April 2007
Leo Simpson & Brank Justic; Kit(s): Oatley Electronics K243
Adjustable 1.3-22V Regulated Power Supply SC 10105071, EPE 698 May 2007
John Clarke; Kit(s): Jaycar KC5446
Throttle Interface For The DC Motor Speed Controller May 2007
Kit(s): Oatley Electronics K244
Leo Simpson & Brank Justic
A PID Temperature Controller July 2007
Leonid Lerner; Notes/errata: Refer project August 2002
A UV Light Box For Making PC Boards SC 10111071/10111072, EPE 765/766 November 2007
Robert Scott; Notes/errata: December 2007, August 2008, March 2012
UHF Remote-Controlled Mains Switch SC 10102081, EPE 738 February 2008
John Clarke; Kit(s): Jaycar KC5462
UHF Remote Mains Switch Transmitter SC 10202081, EPE 739 February 2008
John Clarke; Notes/errata: March 2008; Kit(s): Jaycar KC5462
A PIR-Triggered Mains Switch EPE 798 February 2008
Jim Rowe; Notes/errata: March 2008; Kit(s): Jaycar KC5455
DSP Musicolour Light Show SC 10107081/10107082/10107083, EPE 759/760/764 June 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
DSP Musicolour Light Show; Pt.2 SC 10107081/10107082/10107083, EPE 759/760/764 July 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
DSP Musicolour Light Show; Pt.3 SC 10107081/10107082/10107083, EPE 759/760/764 August 2008
Mauro Grassi; Notes/errata: July & Septemgber 2008; Kit(s): Altronics K5803
DSP Musicolour Light Show; Pt.4 SC 10107081/10107082/10107083, EPE 759/760/764 September 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
IrDA Interface Board For The DSP Musicolour SC 10111081, EPE 807 November 2008
Mauro Grassi
Build A Brownout Protector SC 10112081 December 2008
John Clarke; Notes/errata: January 2009
USB-Sensing Mains Power Switch SC 10101091, EPE 788 January 2009
Jim Rowe & Mauro Grassi; Kit(s): Altronics K2920
Remote Mains Relay Mk.2 SC 10101091, EPE 788 January 2009
Jim Rowe; Notes/errata: Supersedes May 2006 Project
433MHz UHF Remote Switch SC 15101091/15101092, EPE 789/790 January 2009
John Clarke; Notes/errata: March 2009; Kit(s): Altronics K1955/K1956 Jaycar KC5473
Tempmaster Electronic Thermostat Mk.2 SC 10202091, EPE 792 February 2009
Jim Rowe; Kit(s): Jaycar KC5476
10A Universal Motor Speed Controller, Mk.2 SC 10102091 February 2009
John Clarke; Notes/errata: March 2009; Kit(s): Altronics K6035 Jaycar KC5477
Multi-Function Remote-Controlled Lamp Dimmer SC 10104092, EPE 799 April 2009
Mauro Grassi; Notes/errata: May 2009
230VAC 10A Full-Wave Motor Speed Controller May 2009
SC 10105091 updated to 10105092, EPE 804
John Clarke; Notes/errata: June/July/September 2009
Kit(s): Altronics K6035 (discontinued), Jaycar KC5478
UHF Remote 2-Channel 230VAC Power Switch; Kit(s): Oatley K231B May 2009
Branco Justic & Ross Tester; Notes/errata: July 2009
Precision Temperature Logger & Controller, Pt.1 SC 10101101 January 2010
Leonid Lerner
Precision Temperature Logger & Controller, Pt.2 SC 10101101 February 2010
Leonid Lerner
Mains Moderator: Stepping Down The Volts March 2011
Leo Simpson
1.5kW Induction Motor Speed Controller, Pt.1 SC 10105122 (replaces 10105121) April 2012
Andrew Levido; Notes/errata: June & December 2012, August 2013
Kit(s): Altronics K6032 Jaycar KC5509 (discontinued)
SoftStarter: Taming The Surge Current Menace SC 10104121 April 2012
Nicholas Vinen; Kit(s): Altronics K6042
1.5kW Induction Motor Speed Controller, Pt.2 SC 10105122 (replaces 10105121) May 2012
Andrew Levido; Notes/errata: June & December 2012, August 2013
Kit(s): Altronics K6032 Jaycar KC5509 (discontinued)
Soft Starter For Power Tools SC 10107121 July 2012
Nicholas Vinen; Notes/errata: August 2012, April 2014
Kit(s): Jaycar KC5511 Altronics K6043
Timer For Fans And Lights SC 10108121 August 2012
Nicholas Vinen; Kit(s): Altronics K6047, Jaycar KC5512
Modifications For The Induction Motor Speed Controller SC 10105121/10105122 December 2012
Leo Simpson; Kit(s): related: Altronics K6032 Jaycar KC5509
1.5kW Induction Motor Speed Controller Revisions SC 10105122 August 2013
Nicholas Vinen; Kit(s): related: Altronics K6032 Jaycar KC5509 (discontinued)
230V/10A Speed Controller For Universal Motors, Pt.1 SC 10102141 February 2014
John Clarke; Kit(s): Jaycar KC5526, Altronics K6036
230V/10A Speed Controller For Universal Motors, Pt.2 SC 10102141 March 2014
John Clarke; Kit(s): Jaycar KC5526, Altronics K6036
Deluxe 230VAC Fan Speed Controller SC 10104141 May 2014
John Clarke
Brownout Protector For Induction Motors SC 10107161 July 2016
Jim Rowe; Kit(s): Altronics K6049
Two 230VAC Mains Timers (Cyclic Pump Timer and Period Timer) SC 10106161/2 September 2016
John Clarke
Full Wave, 230V Universal Motor Speed Controller SC 10102181 March 2018
John Clarke; Kit(s): Altronics K6037
230VAC Thermopile-based Heater Controller SC 10104181 April 2018
John Clarke
Opto-Isolated Mains Relay 10107181/10107182 October 2018
Tim Blythman; Kit(s): Altronics K2930
Versatile Trailing Edge Dimmer with Touch Plate & IR SC 10111191 February 2019
John Clarke
Versatile Trailing Edge Dimmer – Part 2 SC 10111191/2/3 March 2019
John Clarke
Variac-based Mains Voltage Regulation SC 10103211 May 2021
Dr Hugo Holden
Secure Remote Mains Switch, Part 1 SC 10109211-2 July 2022
John Clarke
Secure Remote Mains Switch, Part 2 SC 10109211-2 August 2022
John Clarke
Active Mains Soft Starter, Part 1 SC 10110221 February 2023
John Clarke
Active Mains Soft Starter, Part 2 SC 10110221 March 2023
John Clarke
Modem/Router Watchdog SC 10111231 November 2023
Nicholas Vinen
Secure Remote Switch, Pt1 SC 10109231-3 December 2023
John Clarke
Mains Power-Up Sequencer, Pt1 SC 10108231 February 2024
John Clarke; Kit(s): SC6871, SC6902
Fan Speed Controller Mk2 SC 10104241 May 2024
John Clarke
New use for Mains Sequencer SC 10108231 July 2024
John Clarke
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11 BATTERY POWER, INVERTERS, FENCES, UPS, MOTOR SPEED
24V to 12V DC Converter for Trucks SC 111-1287 December 1987
John Clarke; Notes/errata: March & August 1988
Poor Man's Plasma Display SC 11111881 November 1988
Leo Simpson; Notes/errata: January 1989
Dynamic Balancing for Electric Fans November 1988
Steve Payor
Build The Touch-Lamp Dimmer SC 11106891 June 1989
Leo Simpson; Notes/errata: October 1989
Alarm Power Supply With Battery Backup ZA-1454 September 1990
Greg Swain; Kit(s): DSE K8402
Build A 1.5V To 9V DC Converter SC 11111901 November 1990
Darren Yates
Three Inverters For Fluorescent Lights SC 11103901 February 1991
Otto Priboj; Kit(s): Jaycar
Battery Discharge Pacer For Electric Vehicles SC 11108911 July 1991
Dieter Kuenne
12VDC/240VAC 40-Watt Inverter SC 11203921 February 1992
John Clarke; Notes/errata: July1992, October 1992; Kit(s): Altronics
Build A 15-Watt 12-240V Inverter SC 11106921 June 1992
John Clarke & Darren Yates
Miniature 1.5V To 9V DC Converter SC 11111921 August 1992
Darren Yates; Kit(s): DSE
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.1 October 1992
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.2 November 1992
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.3 December 1992
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
High-Intensity LED Flasher For Bicycles SC 11112921 January 1993
Darren Yates; Notes/errata: March 1993
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.4 January 1993
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.5 February 1993
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A Solar-Powered Electric Fence; Kit(s): Oatley Electronics April 1993
Branco Justic; Notes/errata: January 1994
12VDC To 70VDC Step-Up Voltage Converter SC 11102931 April 1993
Darren Yates
A Low-Cost Mini Gas Laser SC 11104931 May 1993
Flavio Spadalieri; Kit(s): Oatley Electronics
Build A +5V To +/-12V DC Converter SC 11109931 September 1993
Darren Yates; Kit(s): DSE
High Efficiency Inverter For Fluorescent Tubes SC 11312931 November 1993
John Clarke; Kit(s): Altronics
Compact & Efficient 12-240VAC 200W Inverter SC 11309931 February 1994
John Clarke; Notes/errata: July & October 1994
Fast Charger For Nicad Batteries SC 11102941 May 1994
Darren Yates; Notes/errata: July 1994, September 1994
Kit(s): Altronics, DSE, Jaycar
Build A Nicad Zapper SC 11106941 August 1994
Darren Yates; Notes/errata: April 1998; Kit(s): Jaycar
Electronic Ballast For Fluorescent Lights SC 11309941 October 1994
John Clarke
Simple Battery Saver For Torches SC 11101951 January 1995
Marque Crozman
A Low-Power Electric Fence Controller SC 11306951 July 1995
John Clarke; Notes/errata: December 1995, December 1998; Kit(s): DSE, Jaycar
Build A Jacob's Ladder Display SC 11306951 September 1995
John Clarke; Kit(s): Jaycar KC5191
Low-Cost Fluorescent Light Inverter; Kit(s): Oatley Electronics November 1996
Branco Justic
High-Current Speed Controller For 12V/24V Motors SC 11106971 June 1997
Rick Walters; Notes/errata: August 1997, October 1998; Kit(s): DSE, Jaycar KC5225
The Flickering Flame For Stage Work SC 11410971 October 1997
Ross Tester; Kit(s): Jaycar KC5234
Heavy Duty 10A 240VAC Motor Speed Controller SC 10311971 November 1997
John Clarke; Notes/errata: January 1998; Kit(s): DSE K3087, Jaycar
Build A Musical Doorbell SC 11211971 November 1997
Bob Flynn; Kit(s): Altronics, DSE K3803
Nifty Inverter For Compact Fluorescent Lamps; Kit(s): Oatley Electronics March 1998
Branco Justic; Notes/errata: August 1998
Universal Stepper Motor Controller SC 10106981 June 1998
Rick Walters; Kit(s): Jaycar
A Capacity Indicator For Rechargeable Batteries SC 11106961 September 1998
Rick Walters
Flash Attack! October 1998
Julian Edgar
High-Power Electric Fence Controller SC 11303991 April 1999
John Clarke; Notes/errata: May 1999; Kit(s): Altronics, DSE
Three Electric Fence Testers SC 11303992/11303993/11303994 May 1999
John Clarke; Kit(s): DSE, Jaycar
A Peltier-Powered Can Cooler September 1999
Ross Tester
Backup Battery For Cordless Phones SC 12510991 October 1999
Leo Simpson; Kit(s): Jaycar
50A Motor Speed Controller For Models; Kit(s): Oatley Electronics May 2000
Ross Tester & Branco Justic
Compact Fluorescent Lamp Driver SC 11107001 July 2000
John Clarke; Kit(s): Jaycar
Two White-LED Torches To Build SC 11105011/11205011 May 2001
John Clarke; Notes/errata: June 2001; Kit(s): DSE K3019
A Servo With Lots Of Grunt; Kit(s): Oatley Electronics May 2001
Ross Tester
PowerPak: A Multi-Voltage Power Supply SC 11305011 May 2001
Peter Smith; Notes/errata: June 2001; Kit(s): Altronics
The Battery Guardian SC 05105021 May 2002
John Clarke; Notes/errata: July 2002; Kit(s): Altronics K4080, Jaycar KC5334
Stepper Motor Controller; Kit(s): Oatley Electronics May 2002
Ross Tester; Notes/errata: June 2002
12V Fluorescent Lamp Inverter SC 11109021 September 2002
John Clarke; Notes/errata: December 2002, January 2003
Kit(s): DSE K3131, Jaycar KC5338
Speed Controller For Universal Motors SC 10110021 October 2002
John Clarke; Notes/errata: November 2002, December 2002, January 2003, May 2003
Kit(s): Jaycar KC5339
Our Best LED Torch EVER! SC 11211031 November 2003
John Clarke; Notes/errata: January 2004
Linear Supply For Luxeon 1W Star LEDs SC 11112031/11112032, EPE 588A/B December 2003
Peter Smith
3V To 9V DC-DC Converter SC 11103041 March 2004
Peter Smith; Notes/errata: September 2004; Kit(s): Altronics K6330 Jaycar KC5391
White LED Driver; Kit(s): Oatley K202/K202A March 2004
Stephen David; Notes/errata: October 2004
StarPower: A Switching Supply For Luxeon Star LEDs SC 11105041, EPE 615 May 2004
Peter Smith; Notes/errata: September 2006; Kit(s): Altronics K1010 Jaycar KC5389
Versatile Micropower Battery Protector SC 11107041, EPE 592 July 2004
Peter Smith; Notes/errata: September 2004; Kit(s): DSE K3132
Oh No! Not Another CFL Inverter; Kit(s): Oatley Electronics K111A September 2004
Design by Branko Justic, words by Stephen David; Notes/errata: October 2004
Bidirectional Motor Speed Controller; Kit(s): Ozitronics K166 December 2004
Frank Crivelli; Notes/errata: July 2005
Serial Stepper Motor Controller; Kit(s): www.oceancontrols.com.au July 2005
Greg Radion
Pocket TENS Unit For Pain Relief SC 11101061 January 2006
John Clarke; Kit(s): DSE K3705
Universal High-Energy LED Lighting System SC 11004061, EPE 673 April 2006
John Clarke & Julian Edgar
Universal High-Energy LED Lighting System, Pt.2 SC 11004061, EPE 673 May 2006
John Clarke & Julian Edgar
DC Relay Switch For High-Current Loads SC 05211061, EPE 677 November 2006
John Clarke; Notes/errata: December 2006; Kit(s): Jaycar KC5434
12/24V Auxiliary Battery Controller; Kit(s): Oatley Electronics K227 December 2006
Branko Justic & Ross Tester
High-Power Reversible DC Motor Speed Controller EPE 863/864 April 2007
Leo Simpson & Brank Justic; Kit(s): Oatley Electronics K243
Build A Jacob's Ladder SC 11104071 April 2007
Leo Simpson; Notes/errata: June 2007; Kit(s): Jaycar KC5445
Throttle Interface For The DC Motor Speed Controller May 2007
Kit(s): Oatley Electronics K244
Leo Simpson & Brank Justic
12V-24V High-Current DC Motor Speed Controller, Pt.1 March 2008
SC 09103081/09103082, EPE 736/737
Mauro Grassi; Notes/errata: April, May & July 2008
Kit(s): Altronics K6005, Jaycar KC5465
12V-24V High-Current DC Motor Speed Controller, Pt.2 April 2008
SC 09103081/09103082, EPE 736/737
Mauro Grassi; Notes/errata: April, May & July 2008
Kit(s): Altronics K6005 Jaycar KC5465
High-Current Adjustable Voltage Regulator SC 11105081, EPE 769 May 2008
Jim Rowe; Kit(s): Jaycar KC5463
Versatile LED/Lamp Flasher SC 11009081, EPE 752 September 2008
Thomas Scarborough
High-Current, High-Voltage Battery Capacity Meter, Pt.1 SC 04206091 June 2009
Mauro Grassi; Notes/errata: May 2010; Kit(s): Altronics K1700 (discontinued)
High-Current, High-Voltage Battery Capacity Meter, Pt.2 SC 04206091 July 2009
Mauro Grassi; Notes/errata: May 2010; Kit(s): Altronics K1700 (discontinued)
High-Power Reversible DC Motor Speed Controller; Kit(s): Oatley K275 August 2010
Branko Justic
12V 100W Converter With Adjustable 15-35V DC Output SC 11105111 May 2011
John Clarke
20A 12/24V DC Motor Speed Controller Mk.2 SC 11106111 June 2011
John Clarke; Notes/errata: Refer Mk1 June 1997
Kit(s): Altronics K6007 Jaycar KC5502
DC-DC Converter For the CLASSiC-D Amplifier SC 11104131 May 2013
John Clarke
LifeSaver For Lithium & SLA Batteries SC 11108131 September 2013
Nicholas Vinen; Kit(s): Jaycar KC5523
230/115VAC, 50/60Hz Precision Turntable Driver SC 04104161 May 2016
John Clarke
50A Battery Charger Controller 11111161 November 2016
John Clarke
High Power DC Motor Speed Control – Part 2 SC 11112161-2 February 2017
Design by John Clarke; Kit(s): Jaycar KC5534
El Cheapo Modules: Li-ion & LiPo Chargers August 2017
Jim Rowe
The Lathe-E-Boy: high power Lathe Controller January 2018
Peter Bennett & Nicholas Vinen
800W (+) Uninterruptible Power Supply (UPS) May 2018
Duraid Madina and Tim Blythman
800W (+) Uninterruptible Power Supply (UPS) Part II SC 11106181 June 2018
Duraid Madina and Tim Blythman
800W (+) Uninterruptible Power Supply (UPS) Part III SC 11106181 July 2018
Duraid Madina and Tim Blythman
Dual Battery Isolator for 4WD, RVs, Caravans, etc SC 05106191/2 July 2019
Bruce Boardman
Build your own Gamer’s Seat with Four DoF SC 11109191/11109192 September 2019
Gianni Pallotti
Power Supply for Battery-Powered Vintage Radios 11111201 December 2020
Ken Kranz & Nicholas Vinen
Dual Battery Lifesaver 11111202 December 2020
Nicholas Vinen
Battery Multi Logger SC 11106201 February 2021
Tim Blythman
High-Current Four Battery/Cell Balancer 14102211 March 2021
Duraid Madina
Battery Multi Logger - Part 2 11106201 March 2021
Tim Blythman
Refined Full-Wave Motor Speed Controller SC 10102211 April 2021
John Clarke
High-Current Four Battery/Cell Balancer - Part 2 SC 14102211 April 2021
Duraid Madina
20A DC Motor Speed Controller SC 11006211 July 2021
John Clarke
Multi-Purpose Battery Manager SC 11104211/2 August 2021
Tim Blythman
Remote Gate Controller SC 11009121 February 2022
Dr Hugo Holden
Self Toggling Relay June 2024
Tim Blythman
180-230V DC Motor Speed Controller SC 11104241 July 2024
John Clarke
180-230V DC Motor Speed Controller Part 2 SC 11104241 August 2024
John Clarke
Variable Speed Drive Mk2, Part 1 SC 11111241 November 2024
Andrew Levido
----------------------------------------------------------------------------------------------
12 TELEPHONES/FACSIMILE
Off Hook Indicator for Telephones SC 121-1187 November 1987
John Clarke
Update the Sound of Your Telephone SC 121-1287 January 1988
John Clarke
Line Grabber for Telephones SC12-1-488-1 March 1988
John Clarke & Greg Swain
Build a Hands-Free Speakerphone SC 12-1-0988-1 September 1988
John Clarke & Leo Simpson; Notes/errata: November 1988 & March 1989
Add a Headset to the Speakerphone SC 1210988 November 1988
John Clarke & Greg Swain
Telephone Bell/Monitor Transmitter SC 01204891 April 1989
Greg Swain & Malcolm Young
Alarm-Triggered Telephone Dialler ZA-1430 September 1989
Greg Swain; Notes/errata: March 1990; Kit(s): DSE
Phone Patch For Radio Amateurs, Pt.1 SC 12112891 January 1990
John Clarke & Greg Swain; Notes/errata: August 1990
Phone Patch For Radio Amateurs, Pt.2 SC 12112891 February 1990
John Clarke & Greg Swain; Notes/errata: August 1990
Music On Hold For Your Telephone OE 90 MOH September 1990
Jeff Monegal & Branko Justic; Kit(s): Oatley Electronics
Build A DTMF Decoder SC 12106911 May 1991
Darren Yates & Greig Sheridan
Build A Fax/Modem For Your Computer; Kit(s): PC Marketplace September 1991
Leo Simpson
Build A Telephone Call Timer SC 12104921 March 1992
Darren Yates
Build A Telephone Intercom SC 12105921/12105922 May 1992
Greig Sheridan; Notes/errata: July 1992
An Off-Hook Timer For Telephones SC 12106921 July 1992
Darren Yates
The Interphone Digital Telephone Exchange; Pt.1 CE92MC August 1992
Jeff Monegal
Notes/errata: Simplified Circuit: November 1992; Refinement: Circuit Notebook June 1993
The Interphone Digital Telephone Exchange; Pt.2 CE92MC September 1992
Jeff Monegal
Notes/errata: Simplified Circuit: November 1992; Refinement: Circuit Notebook June 1993
Simplifying The Interphone Telephone Exchange CE92MC November 1992
Leo Simpson
Duplex Intercom Using Fibre-Optic Cable; Kit(s): DIY/Ozitronics Kit 39 May 1996
Leo Simpson
The Alert-A-Phone Loud Sounding Alarm; Kit(s): Telephone Technical Services February 1997
Derek Diggles
Telephone Exchange Simulator For Testing; Kit(s): Mike Zenere February 1998
Mike Zenere
Remote Modem Controller SC 07408991 August 1999
Leon Williams; Notes/errata: March 2000; Kit(s): Jaycar
Backup Battery For Cordless Phones SC 12510991 October 1999
Leo Simpson; Kit(s): Jaycar
Build An Intercom Station Expander; Kit(s): Hoad Electronics November 1999
Paul Hoad
Telephone Exchange Simulator For Testing January 2000
Mike Zenere
Off-Hook Indicator For Telephone Lines SC 12101001 January 2000
John Clarke; See also Circuit Notebook August 2000
Message Bank & Missed Call Alert SC 12111001 November 2000
Leo Simpson & Rick Walters
Phonome: Call, Listen In & Switch Devices On & Off SC 12106011 June 2001
Leon Williams
Do Not Disturb Telephone Timer SC 12107011 July 2001
John Clarke; Kit(s): Jaycar
Telephone Call Logger K164 December 2001
Frank Crivelli & Peter Crowcroft; Kit(s): Ozitronics
Telephone Headset Adaptor SC 12107021 July 2002
John Clarke
Telephone Dialler For Burglar Alarms SC 03204031, EPE 579 April 2003
Leon Williams; Kit(s): Altronics K6230, Jaycar KC5348
PICAXE-Controlled Telephone Intercom June 2003
David Lincoln
SMS Controller, Pt.1 SC 12110041, EPE 609 October 2004
Peter Smith; Notes/errata: December 2004, March & August 2005, December 2006
Kit(s): Altronics K9050 DSE K7221 Jaycar KC5400
SMS Controller, Pt.2 SC 12110041, EPE 609 November 2004
Peter Smith; Notes/errata: December 2004, March & August 2005, December 2006
Kit(s): Altronics K9050 DSE K7221 Jaycar KC5400
SMS Controller Add-Ons SC 11107041 April 2005
Peter Smith; See also July 2004
VoIP Analog Phone Adaptor SC 03109051 September 2005
Ross Tester; Notes/errata: May 2006; Kit(s): Altronics K2780
Phone/Fax Missed Call Alert SC 12103061, EPE 655 March 2006
Jim Rowe
Phone Line Polarity Checker SC 12105111 May 2011
David Drane
Mobile Phone Loud Ringer SC 12110121 February 2013
John Clarke
Do Not Disturb Telephone Timer SC 12104131 May 2013
John Clarke; Kit(s): Jaycar KC5521
Tele-com – an intercom using analog phones SC 12110121 October 2021
Greig Sheridan & Ross Herbert
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13 PHOTOGRAPHY/ASTRONOMY
Build a Slave Flash Trigger SC 13-1-588 April 1988
John Clarke & Greg Swain
An Infrared Night Viewer; Kit(s): Oatley Electronics November 1992
Branko Justic
An Alarm-Triggered Security Camera SC 03103931/03103932 March 1993
Tony Nixon
A 24-Hour Sidereal Clock For Astronomers SC 04103931 March 1993
Bob Flynn
A Microprocessor-Based Sidereal Clock; Kit(s): John Western August 1993
John Western
An Image Intensified Night Viewer; Kit(s): Oatley Electronics September 1994
Leo Simpson
IR Illuminator For CCD Cameras & Night Viewers; Kit(s): Oatley Electronics March 1995
Branco Justic
A Photographic Timer For Darkrooms SC 10304951 April 1995
John Clarke; Notes/errata: November 1996; Kit(s): DSE, Jaycar
A Regulated Supply For Darkroom Lamps SC 10107971 November 1997
Rick Walters
Flash Attack! October 1998
Julian Edgar
Electric Shutter Release For Cameras April 2003
Julian Edgar
A "Smart" Slave Flash Trigger SC 13107031, EPE 560 July 2003
Jim Rowe; Kit(s): Altronics K8080, DSE K3228, Jaycar KC5364
A Safe Flash Trigger For Your Digital SLR Camera April 2008
Ross Tester
A Quick’n’Easy Digital Slide Scanner June 2008
Brian Coulson
Programmable Time Delay Flash Trigger SC 13102091, EPE 791 February 2009
Jim Rowe; Notes/errata: April 2009; Kit(s): Altronics K6009
Build A Beam-Break Flash Trigger SC 13106091/13106092, EPE 808/809 June 2009
Jim Rowe; Kit(s): Altronics K6011
A Speed Controller For Film Projectors SC 13104111 April 2011
John Clarke
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14 BATTERY CHARGERS
Mega-Fast Nicad Battery Charger SC 14-1-588 June 1988
John Clarke & Greg Swain
6/12V Charger For SLA Batteries SC 14103901 March 1990
Darren Yates; See also Ask SC June 1990
Fast Charger For Nicad Batteries; Pt.1 SC 14101911 January 1991
John Clarke & Greg Swain
Fast Charger For Nicad Batteries; Pt.2 SC 14101911 February 1991
John Clarke & Greg Swain
13.5V 25A Power Supply For Transceivers, Pt.1 SC 14105911/14105912 May 1991
John Clarke & Leo Simpson
13.5V 25A Power Supply For Transceivers, Pt.2 SC 14105911/14105912 June 1991
John Clarke & Leo Simpson
Battery Charger For Solar Panels; Kit(s): Jaycar November 1991
Steve Calder / Hycal Electronics; Notes/errata: February 1992
Build A Nicad Battery Discharger SC 14207921 July 1992
Marque Crozman; Notes/errata: September 1992
Portable 12V SLA Battery Charger SC 14107921 July 1992
Darren Yates; Notes/errata: September 1992; Kit(s): Jaycar
Build An Automatic SLA Battery Charger SC 14109921 August 1992
Darren Yates; Notes/errata: September 1992; Kit(s): DSE K3204
The Thunderbird Battery Charger SC 14110921/14110922 October 1992
Herman Nacinovich
An Automatic Nicad Battery Discharger; Kit(s): DSE K3126 exclusive November 1992
Bernie Gilchrist; Notes/errata: January 1993
Build A Solar Charger For 12V Batteries OESOLARSC March 1993
Branco Justic; Kit(s): Oatley Electronics
A Nicad Cell Discharger SC 14305931 May 1993
John Clarke; Notes/errata: July 1993, November 1994; Kit(s): DSE
Automatic Nicad Battery Charger September 1993
Kit(s): Cessnock Instrumentation & Electronics (CIE)
Warren Buckingham; Notes/errata: September 1994
A Switching Regulator For Solar Panels January 1994
Otto Priboj
Fast Charger For Nicad Batteries SC 11102941 May 1994
Darren Yates; Notes/errata: July 1994, September 1994
Kit(s): Altronics, DSE, Jaycar
Build A Portable 6V SLA Battery Charger; Kit(s): Jaycar July 1994
Brian Dove
Build A Nicad Zapper SC 11106941 August 1994
Darren Yates; Notes/errata: April 1998; Kit(s): Jaycar
Automatic Discharger For Nicad Battery Packs SC 14306941 September 1994
John Clarke; Kit(s): Altronics, Jaycar
Build A Dry-Cell Battery Rejuvenator RAT002 November 1994
Darren Yates; Kit(s): RAT Electronics
Twin-Cell Nicad Discharger SC 14305931 November 1994
Darren Yates; Notes/errata: Refer project May 1993
Build A Sun Tracker For Solar Panels SC 13101951 January 1995
Nenad Stojadinovic
A Fast Charger For Nicad Batteries SC 14309951 October 1995
John Clarke; Notes/errata: June 1997
Automatic 10-Amp Battery Charger SC 14105961/14105962/14106961/14106962 June 1996
Rick Walters; Kit(s): Altronics, Jaycar
Build A 2A SLA Battery Charger SC 14305961 July 1996
John Clarke; Notes/errata: October 1996; Kit(s): Altronics, DSE, Jaycar
Multi-Purpose Fast Battery Charger; Pt.1 SC 14302981/14302982 February 1998
John Clarke; Notes/errata: May 1998; Kit(s): Altronics, DSE
Multi-Purpose Fast Battery Charger; Pt.2 SC 14302981/14302982 March 1998
John Clarke; Notes/errata: May 1998; Kit(s): Altronics, DSE
Simple Charger For 6V & 12V SLA Batteries; Kit(s): Oatley Electronics July 1998
Branco Justic
Connect And Forget 12V Battery Charger SC 14110981 October 1998
Rick Walters; Notes/errata: November 1998; Kit(s): Altronics, Jaycar
Intelligent Nicad Battery Charger SC 14104011 April 2001
Peter Hayles; Kit(s): www.angelfire.com/electronic/hayles
A Fast Universal Battery Charger SC 14106011/14302982 June 2001
John Clarke; Notes/errata: November 2001, December 2001, October 2002
Kit(s): Altronics K1672, Jaycar KC5315
A Fast Universal Battery Charger; Pt.2 SC 14106011/14302982 July 2001
John Clarke; Notes/errata: November 2001, December 2001, October 2002
Kit(s): Altronics K1672, Jaycar KC5315
12/24V Intelligent Solar Power Battery Charger K009B March 2002
Ross Tester; Notes/errata: April 2002, May 2003; Kit(s): Oatley Electronics
Constant High-Current Source; Kit(s): Oatley Electronics June 2002
Ross Tester
SuperCharger For NiCd & NiMH Batteries; Pt.1 SC 14111021/14111022/14111023 November 2002
Peter Smith; Notes/errata: June 2004 & Addendum March 2003
SuperCharger For NiCd & NiMH Batteries; Pt.2 SC 14111021/14111022/14111023 December 2002
Peter Smith; Notes/errata: June 2004 & Addendum March 2003
12V SLA Battery Float Charger SC 01103034 March 2003
John Clarke and Leo Simpson; Notes/errata: April 2003; Kit(s): Altronics K1695
SuperCharger Addendum SC 14111024 March 2003
Peter Smith
A Charger For Deep-Cycle 12V Batteries, Pt.1 SC 14111041/14111042/14111043 November 2004
John Clarke; Kit(s): Altronics K1675
A Charger For Deep-Cycle 12V Batteries, Pt.2 SC 14111041/14111042/14111043 December 2004
John Clarke; Kit(s): Altronics K1675
Lead-Acid Battery Zapper SC 14107051, EPE 623 July 2005
Jim Rowe; Notes/errata: September & November 2005; Kit(s): Jaycar KC5414
Build A Charger For iPods & MP3 players SC 14102061, EPE 648 February 2006
John Clarke; Notes/errata: March 2006, June 2007
Lead-Acid Battery Zapper & Condition Checker SC 14105061 May 2006
Jim Rowe; Notes/errata: October & December 2006; Kit(s): Jaycar KC5427/KC5428
Cordless Power Tool Charger Controller SC 14112061, EPE 686 December 2006
John Clarke; Notes/errata: February 2007, April 2008
Kit(s): Jaycar KC5436 (discontinued)
Intelligent 12V Charger for SLA & Lead-Acid Batteries January 2007
Kit(s): Oatley Electronics K215
Branko Justic & Ross Tester
A Fast Charger For NiMH & Nicad Batteries SC 14109071, EPE 720 September 2007
John Clarke; Notes/errata: December 2007; Kit(s): Altronics K1655 Jaycar KC5453
Mini Solar Battery Charger; Kit(s): Oatley Electronics K251A February 2008
Branko Justic
Charge Controller For 12V Lead-Acid Or SLA Batteries SC 14104081, EPE 741 April 2008
John Clarke; Notes/errata: September 2009; Kit(s): Altronics K1677 (discontinued)
Lead-Acid Battery Zapper & Desulphator Mk.3 SC 04107091 July 2009
Jim Rowe; Notes/errata: October 2009; Kit(s): Altronics K1687, Jaycar KC5479
Low-Power Car/Bike USB Charger SC 14105101, EPE 844 May 2010
Nicholas Vinen; Kit(s): K1681
Build A 12/24V 3-Stage Solar Charge Controller SC 14102111/14102112 February 2011
John Clarke; See March 2012 for mods; Kit(s): Jaycar KC5500
12V 20-120W Solar Panel Simulator SC 04103111 March 2011
John Clarke
12/24V MPPT Solar Charge Controller Rev.1 SC 14102112 March 2012
John Clarke; Kit(s): Altronics K6029
A Rugged 10A Battery Charger From Bits & Pieces April 2013
Ross Tester
Voltage & Current Meters For The New Battery Charger May 2013
Ross Tester
Build An iPod Charger Adaptor SC 14108131 August 2013
John Clarke
Simple 12V/24V Regulator For 70V Solar Panels Oatley K326-3 September 2013
Branko Justic; Kit(s): Oatley K330P
Burp Charger For NiMH & Nicad Batteries SC 14103141 March 2014
John Clarke; Kit(s): Jaycar KC5527
Intelligent Charger for Nicad & NiMH Batteries; Kit(s): Shapely PH-00001 July 2015
Peter Hayles
Battery-Pack Cell Balancer For Optimum Charging SC 11111151 March 2016
Nicholas Vinen
El Cheapo Modules: Li-ion & LiPo Chargers August 2017
Jim Rowe
12V Battery Balancer SC 14106181 May 2018
Nicholas Vinen
Have you got a dumb battery charger in your garage? SC14107191 December 2019
John Clarke; Kit(s): Altronics kit TBA
Revised Battery Charge Controller SC 14107192 June 2022
John Clarke
Multi-Stage Buck/Boost Charger SC 14108221 October 2022
Tim Blythman; Kit(s): SC6512
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15 REMOTE CONTROL
Easy To Build UHF Remote Switch ZA-1518 December 1989
Greg Swain; Notes/errata: January 1994; Kit(s): DSE
High-Stability UHF Remote Transmitter ZA-1432 August 1990
Greg Swain; Notes/errata: January 1994; Kit(s): DSE K3259
Remote Control Extender For VCRs SC 15108901 September 1990
John Clarke & Greg Swain; Notes/errata: March 1991
Remote Controller For Garage Doors, Pt.1 OE90RG March 1991
Branko Justic; Notes/errata: June 1991; Kit(s): Oatley Electronics
Remote Controller For Garage Doors, Pt.2 OE90RG April 1991
Branko Justic; Notes/errata: June 1991; Kit(s): Oatley Electronics
Infrared Remote Control For Model Railroads, Pt.1 April 1992
SC 91488 / 15204921/ 15204922
Leo Simpson & John Clarke
Notes/errata: Ref SC April 1996: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs
Infrared Remote Control For Model Railroads, Pt.2 May 1992
SC 91488 / 15204921/ 15204922
Leo Simpson & John Clarke
Notes/errata: Ref SC April 1996: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs
Infrared Remote Control For Model Railroads, Pt.3 June 1992
SC 91488 / 15204921/ 15204922
Leo Simpson & John Clarke
Notes/errata: Ref SC April 1996: Replacement Module For The SL486 & MV601 Remote Control Receiver ICs
An Easy-To-Build UHF Remote Switch; Kit(s): Oatley Electronics December 1992
Greg Swain
Remote Volume Control For Hifi Systems; Pt.1 SC 01305931/01305932 May 1993
John Clarke; Notes/errata: Remote Control Receiver ICs: April 1996
Remote Control For The Woofer Stopper SC 03105932 June 1993
Darren Yates; Kit(s): Oatley Electronics
Remote Volume Control For Hifi Systems; Pt.2 SC 01305931/01305932 June 1993
John Clarke; Notes/errata: Remote Control Receiver ICs: April 1996
Stereo Preamplifier With IR Remote Control; Pt.1 September 1993
SC 01308931/01308932/01308933/01308934
John Clarke; Notes/errata: April 1994
Remote-Controlled Electronic Cockroach SC 08307931/08307932 September 1993
John Clarke
Stereo Preamplifier With IR Remote Control; Pt.2 October 1993
SC 01308931/01308932/01308933/01308934
John Clarke; Notes/errata: April 1994
Remote Controller For Garage Doors; Kit(s): Oatley Electronics December 1993
Branco Justic
Intelligent IR Remote Controller IRJ201 March 1994
Ben Douchkov; Kit(s): Benetron
Level Crossing Detector For Model Railways SC 15203931 March 1994
John Clarke; Kit(s): DSE, Jaycar
Remote Control Extender For VCRs SC 15303941 April 1994
John Clarke; Notes/errata: June 1994; Kit(s): Altronics, Jaycar
Sound & Lights For Level Crossings SC 15203932 April 1994
John Clarke; Kit(s): DSE, Jaycar
Multi-Channel Infrared Remote Control SC 15105941/15105942 May 1994
Brian Roberts; Notes/errata: March 1995
A Dual Channel UHF Remote Control ZA1307 January 1995
Bernie Gilchrist; Kit(s): DSE K3260
IR Remote Control For The Railpower Mk.2 SC 09101961 January 1996
Rick Walters
Three Remote Controls To Build; Kit(s): Oatley Electronics February 1996
Branco Justic; See Circuit Notebook May 1997 For Latched Outputs
Replacement Module For The SL486 & MV601 SC 09103961 April 1996
Rick Walters
Notes/errata: Ref: IR RC For Model Railroads, SC April-May 92; Remote Volume Control For HiFi, SC May-June 93; Stereo Preamplifier With IR RC, SC Sept-Nov 93
Remote Control Extender For VCRs SC 15107961 July 1996
Rick Walters; Notes/errata: September 2002; Kit(s): Jaycar KC5209
Infrared Remote Volume Control; Kit(s): Oatley Electronics July 1997
Leo Simpson
Remote Controlled Gates For Your Home SC 15108971 August 1997
Phung Mai; Notes/errata: September 1997
Pan Controller For CCD Video Cameras; Kit(s): Oatley Electronics January 1998
Branco Justic
An Automatic Garage Door Opener; Pt.1 SC 05104981/05104982 April 1998
Rick Walters
An Automatic Garage Door Opener; Pt.2 SC 05104981/05104982 May 1998
Rick Walters
A Remote Control Tester; Kit(s): Oatley Electronics February 1999
Leo Simpson
Remote Modem Controller SC 07408991 August 1999
Leon Williams; Notes/errata: March 2000; Kit(s): Jaycar
Voice Direct Speech Recognition Module SC 07109991 September 1999
Ross Tester; Notes/errata: October 1999; Kit(s): Adilam Electronics
Phonome: Call, Listen In & Switch Devices On & Off SC 12106011 June 2001
Leon Williams
Build A PC Infrared Transceiver SC 07112011 December 2001
Peter Smith; Kit(s): Altronics K2740, DSE K3608, Jaycar KC5323
10-Channel IR Remote Control Receiver SC 15102021 February 2002
John Clarke; Kit(s): Altronics, Jaycar KC5326
6-Channel IR Remote Volume Control, Pt.1 SC 01103021/01103022/01103023 March 2002
John Clarke; Notes/errata: June 2002; Kit(s): Altronics
6-Channel IR Remote Volume Control, Pt.2 SC 01103021/01103022/01103023 April 2002
John Clarke; Notes/errata: June 2002; Kit(s): Altronics
Remote Volume Control For Stereo Amplifiers SC 15106021 June 2002
John Clarke; Kit(s): Altronics K5026
A Rolling Code 4-Channel UHF Remote Control; Kit(s): Oatley Electronics July 2002
Ross Tester; Notes/errata: September 2002 , December 2002
Remote Volume Control For The Ultra-LD Amplifier July 2002
SC 01107021, 15106022, 15106023
John Clarke & Greg Swain; Kit(s): Altronics & DSE
Infrared Remote Control; Kit(s): Ozitronics, Kits-R-Us September 2002
Frank Crivelli & Ross Tester
Long-Range 4-Channel UHF Remote Control; Kit(s): Oatley Electronics June 2003
Greg Swain; For PC or PICAXE control see project April 2004
PC Infrared Remote Receiver SC 07108031 August 2003
Peter Smith; Notes/errata: September 2003, November 2003
Kit(s): Altronics K2755, Jaycar KC5366
Long-Range 16-Channel Remote Control System; Kit(s): Oatley Electronics October 2003
Jeff Monegal
PC/PICAXE Interface For UHF Remote Control April 2004
John Holliday; Notes/errata: Refer project June 2003
Wireless Parallel Port SC 07105041 May 2004
Nenad Stojadinovic
An RFID Security Module SC 03106041, EPE 628 June 2004
Peter Smith; Notes/errata: July 2004, August 2006
Kit(s): Altronics K9300, DSE K7215, Jaycar KC5393
Bed Wetting Alert Sounder For Toddlers SC 15109041/15109042 September 2004
John Clarke; Kit(s): Jaycar KC5396
You’ve Had Your Fun – Now Make A Doorbell SC 15109043 September 2004
John Clarke; Kit(s): Jaycar KC5397
SMS Controller, Pt.1 SC 12110041, EPE 609 October 2004
Peter Smith; Notes/errata: December 2004, March & August 2005, December 2006
Kit(s): Altronics K9050 DSE K7221 Jaycar KC5400
Remote Controller For Garage Doors & Gates; Kit(s): Oatley Electronics K023C October 2004
Oatley Electronics; Notes/errata: November 2004, January 2005
SMS Controller, Pt.2 SC 12110041, EPE 609 November 2004
Peter Smith; Notes/errata: December 2004, March & August 2005, December 2006
Kit(s): Altronics K9050 DSE K7221 Jaycar KC5400
Picaxe Infrared Remote Control; Kit(s): picaxe.co.uk & microzed.com.au November 2004
Clive Seager
IR Remote Control Checker SC 04101051, EPE 608 January 2005
Jim Rowe; Kit(s): DSE K3055 Jaycar KC5407
SMS Controller Add-Ons SC 11107041 April 2005
Peter Smith; See also July 2004
Remote-Controlled Automatic Table Lamp Dimmer SC 10107051 July 2005
John Clarke; Notes/errata: September 2005; Kit(s): DSE K3040
PICAXE-Based 433MHz Wireless Thermometer; Kit(s): Clinch Electronic Systems January 2006
Stan Swan; Notes/errata: April 2006
PICAXE Goes Wireless; Kit(s): AXE210 April 2006
Clive Seager
PICAXE Goes Wireless, Pt.2; Kit(s): AXE210 May 2006
Clive Seager
Boost Your XBee’s Range Using Simple Antennas May 2006
Stan Swan
Infrared Remote Control Extender SC 02110061 October 2006
John Clarke; See also Circuit Notebook July 2010
Kit(s): Jaycar KC5432
A Remote Telltale For Garage Doors SC 03101071/03101072 January 2007
Jim Rowe
Dual PICAXE Infrared Data Communication April 2007
Stan Swan
Rolling Code Security System; Pt.1 SC 01510071/01510072, EPE 721/722 October 2007
John Clarke; Notes/errata: September 2008; Kit(s): Altronics K1940 Jaycar KC5458
Rolling Code Security System; Pt.2 SC 01510071/01510072, EPE 721/722 November 2007
John Clarke; Notes/errata: September 2008; Kit(s): Altronics K1940 Jaycar KC5458
UHF Remote-Controlled Mains Switch SC 10102081, EPE 738 February 2008
John Clarke; Kit(s): Jaycar KC5462
UHF Remote Mains Switch Transmitter SC 10202081, EPE 739 February 2008
John Clarke; Notes/errata: March 2008; Kit(s): Jaycar KC5462
12V Speed Controller/Lamp Dimmer SC 05111081, EPE 781, 05car111 November 2008
Leo Simpson; Kit(s): Altronics K6008, Jaycar KC5382
IrDA Interface Board For The DSP Musicolour SC 10111081, EPE 807 November 2008
Mauro Grassi
433MHz UHF Remote Switch SC 15101091/15101092, EPE 789/790 January 2009
John Clarke; Notes/errata: March 2009; Kit(s): Altronics K1955/K1956 Jaycar KC5473
UHF Remote 2-Channel 230VAC Power Switch; Kit(s): Oatley K231B May 2009
Branco Justic & Ross Tester; Notes/errata: July 2009
A 3-Channel UHF Rolling-Code Remote Control, Pt.1 August 2009
SC 15008091/15008092, EPE 816/817
John Clarke; Notes/errata: September 2009
Kit(s): Altronics K1957/K1958 Jaycar KC5483/KC5484
3-Channel UHF Rolling-Code Remote Control, Pt.2 September 2009
SC 15008091/15008092, EPE 816/817
John Clarke; Notes/errata: September 2009
Kit(s): Altronics K1957/K1958 Jaycar KC5483/KC5484
A Versatile 10-Channel Remote Control Receiver SC 15106131 June 2013
John Clarke
Infrared-to-433MHz UHF Transceiver SC 15106132 June 2013
John Clarke
Build a Driveway Monitor, Pt.1 SC 15105151/15105152 July 2015
John Clarke; Kit(s): Altronics K4035
Build A Driveway Monitor, Pt.2 SC 15105151 August 2015
John Clarke; Kit(s): Altronics K4035
Build A 9-Channel Infrared Remote Control SC 15108151. September 2015
John Clarke
WiFi Controlled Switch Using A Raspberry Pi & Smartphone November 2016
Greg Swain & Nicholas Vinen
Add wireless remote to your motorised garage door September 2018
Design by Branko Justic; words by Ross Tester
Solar-powered data repeater for 433MHz remotes SC 15004191 May 2019
John Clarke
Infrared Remote Control Assistant SC 15005201/2 July 2020
John Clarke
Remote Control Range Extender SC 15109211/2 January 2022
John Clarke; Kit(s): SC5993
Secure Remote Mains Switch, Part 1 SC 10109211-2 July 2022
John Clarke
Secure Remote Switch, Pt1 SC 10109231-3 December 2023
John Clarke
Secure Remote Switch, Pt2 SC 10109231/2/3 January 2024
John Clarke
Wired Infrared Remote Extender May 2024
Tim Blythman
Arduino Clap Light June 2024
Tim Blythman
IR Helper September 2024
Tim Blythman
8Ch Learning Remote Receiver SC 15108241 October 2024
John Clarke
JMP012 - WiFi Relay Remote Control October 2024
Tim Blythman
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16 LASERS & LIGHTING
Build the Speedi-Watt SC 1011287 December 1987
Leo Simpson; See Ask SC March 1988 for fluoro mod
Build Your Own Light Box March 1988
Leo Simpson
Build the Party Light May 1988
Stephen David
Build the Discolight 10106881 July 1988
John Clarke & Leo Simpson; See Ask SC October 1995
Kit(s): Altronics, DSE, Jaycar
Building the Discolight, Pt.2 SC 1010688 August 1988
Greg Swain & John Clarke; See Ask SC October 1995
Kit(s): Altronics, DSE, Jaycar
The LED-Light House Number SC 03-1-0988-1 October 1988
John Clarke & Leo Simpson
Build The Touch-Lamp Dimmer SC 11106891 June 1989
Leo Simpson; Notes/errata: October 1989
Extension For The Touch-Lamp Dimmer SC 10107892 July 1989
Leo Simpson; Notes/errata: September 1989
Dimming Controls For The Discolight SC 10111902 October 1990
John Clarke
Battery Powered Laser Pointer; Kit(s): Oatley Electronics November 1990
Leo Simpson
Build A Bigger Laser; Kit(s): Oatley Electronics January 1991
Otto Priboj
Three Inverters For Fluorescent Lights SC 11103901 February 1991
Otto Priboj; Kit(s): Jaycar
Fluorescent Light Simulator For Model Railways May 1991
Kit(s): Electronic Toy Services
Darren Yates
Four-Channel Lighting Desk, Pt.1 SC 10106911/10106912 June 1991
John Clarke & Leo Simpson; Kit(s): DSE
Four-Channel Lighting Desk, Pt.2 SC 10106911/10106912 July 1991
John Clarke & Leo Simpson; Kit(s): DSE
Compact Solid-State Laser Pointer; Kit(s): Oatley Electronics December 1991
Leo Simpson
A Low-Cost Mini Gas Laser SC 11104931 May 1993
Flavio Spadalieri; Kit(s): Oatley Electronics
High Efficiency Inverter For Fluorescent Tubes SC 11312931 November 1993
John Clarke; Kit(s): Altronics
Build A Low-Voltage LED Stroboscope SC 04112931/04112932/04112933 December 1993
Darren Yates
High-Power Dimmer For Incandescent Lights SC 10107941 August 1994
Marque Crozman
Electronic Ballast For Fluorescent Lights SC 11309941 October 1994
John Clarke
IR Illuminator For CCD Cameras & Night Viewers; Kit(s): Oatley Electronics March 1995
Branco Justic
Motorised Laser Lightshow; Kit(s): Oatley Electronics May 1996
Branco Justic
Build A Rope Light; Kit(s): Oatley Electronics June 1996
Robert Riede
Build A Laser Pointer From A Kit; Kit(s): DSE K1048 June 1996
D Light
Electronic Starter For Fluorescent Lights SC 10308961 August 1996
John Clarke; Notes/errata: October 1996; Kit(s): DSE
Power Control With A Light Dimmer October 1996
Leo Simpson
Low-Cost Fluorescent Light Inverter; Kit(s): Oatley Electronics November 1996
Branco Justic
How To Repair Domestic Light Dimmers November 1996
Leo Simpson
Neon Tube Modulator For Cars & Light Systems SC 05105971 May 1997
Rick Walters; Kit(s): DSE, Jaycar KC5221
Build A One Or Two-Lamp Flasher 16301981 January 1998
John Clarke; Kit(s): DSE, Jaycar
Build Your Own 4-Channel Lightshow; Pt.2 SC 01112971/01112972 February 1998
Leo Simpson & Rick Walters; Kit(s): Altronics, Jaycar
Nifty Inverter For Compact Fluorescent Lamps; Kit(s): Oatley Electronics March 1998
Branco Justic; Notes/errata: August 1998
Build A Laser Light Show; Kit(s): Oatley Electronics April 1998
Branco Justic
Build A Beat Triggered Strobe SC 16305981 August 1998
John Clarke; Kit(s): Altronics K5792
Daytime Runnings Lights For Cars SC 05408991 August 1999
John Clarke; Notes/errata: September 1999; Kit(s): Altronics, DSE, Jaycar
A Moving Message Display; Kit(s): Copyright 4D Systems (no longer available) July 2000
Atilla Aknar & Ross Tester
Compact Fluorescent Lamp Driver SC 11107001 July 2000
John Clarke; Kit(s): Jaycar
Come In Spinner; Kit(s): Copyright 4D Systems (no longer available) August 2000
Atilla Aknar & Ross Tester
Proximity Switch For 240VAC Lamps; Kit(s): Futurlec August 2000
Allan Bonnard & Leo Simpson
Santa & Rudolph Christmas Lights Display SC 16111001 November 2000
John Clarke & Ross Tester; Kit(s): DSE K3003, Jaycar KC5302
Build A Bright-White LED Torch SC 11112001 December 2000
John Clarke; See also Circuit Notebook January, May and October 2002
Kit(s): DSE K3018
Two White-LED Torches To Build SC 11105011/11205011 May 2001
John Clarke; Notes/errata: June 2001; Kit(s): DSE K3019
A Neon Tube Modulator For Cars SC 05111011 November 2001
Rick Walters; Kit(s): Jaycar KC5322
Pardy Lights: An Intriguing Colour Display K170 December 2001
Ross Tester; Notes/errata: April 2002; Kit(s): Oatley Electronics
Touch And/Or Remote-Controlled Light Dimmer; Pt.1 SC 10101021 January 2002
John Clarke; Notes/errata: August 2002; Kit(s): Altronics K6030, Jaycar KC5324
Touch And/Or Remote-Controlled Light Dimmer; Pt.2 SC 10101021 February 2002
John Clarke; Notes/errata: August 2002; Kit(s): Altronics K6030, Jaycar KC5324
The Itsy-Bitsy USB Lamp; Kit(s): Jaycar KC5328 March 2002
Stan Swan & Ross Tester
Automatic Single-Channel Light Dimmer SC 10104021/10104022/10104023 April 2002
John Clarke
Automatic Single-Channel Light Dimmer; Pt.2 SC 10104021/10104022/10104023 May 2002
John Clarke
12V Fluorescent Lamp Inverter SC 11109021 September 2002
John Clarke; Notes/errata: December 2002, January 2003
Kit(s): DSE K3131, Jaycar KC5338
LED Lighting For Your Car March 2003
SC 05103031/05103032/05103033/05103034/05103035/05103036, EPE 568
Peter Smith; Kit(s): Jaycar KC5354/KC5355/KC5356/KC5357/KC5359
Sunset Switch For Security & Garden Lighting SC 10106031 June 2003
John Clarke; Notes/errata: July 2003; Kit(s): Altronics K6025, Jaycar KC5359
Very Bright., Very Cheap Krypton Bike Light September 2003
Julian Edgar
Our Best LED Torch EVER! SC 11211031 November 2003
John Clarke; Notes/errata: January 2004
Linear Supply For Luxeon 1W Star LEDs SC 11112031/11112032, EPE 588A/B December 2003
Peter Smith
High-Efficiency Power Supply For 1W Star LEDs SC 11101041, EPE 600 January 2004
Peter Smith; Notes/errata: February 2004; Kit(s): Altronics K1000
Our Fantastic Human-Powered LED Torches February 2004
Julian Edgar
White LED Driver; Kit(s): Oatley K202/K202A March 2004
Stephen David; Notes/errata: October 2004
StarPower: A Switching Supply For Luxeon Star LEDs SC 11105041, EPE 615 May 2004
Peter Smith; Notes/errata: September 2006; Kit(s): Altronics K1010 Jaycar KC5389
Courtesy Light Delay For Cars SC 05106041, EPE 603 June 2004
John Clarke; Notes/errata: July 2004; Kit(s): Jaycar KC5392
Wanna Go Prawning? You’ll Need The Prawnlite; Kit(s): Oatley Electronics K217 January 2005
Branko Justic & Ross Tester
Universal High-Energy LED Lighting System SC 11004061, EPE 673 April 2006
John Clarke & Julian Edgar
Universal High-Energy LED Lighting System, Pt.2 SC 11004061, EPE 673 May 2006
John Clarke & Julian Edgar
Spectacular Bike-Wheel POV Display SC 16109071, EPE 711 September 2007
Ian Paterson
Emergency 12V Lighting Controller EPE 733 January 2008
Jim Rowe; Kit(s): KC5456
DSP Musicolour Light Show SC 10107081/10107082/10107083, EPE 759/760/764 June 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
DSP Musicolour Light Show; Pt.2 SC 10107081/10107082/10107083, EPE 759/760/764 July 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
DSP Musicolour Light Show; Pt.3 SC 10107081/10107082/10107083, EPE 759/760/764 August 2008
Mauro Grassi; Notes/errata: July & Septemgber 2008; Kit(s): Altronics K5803
What About The Musicolour Display - ie, The Lights! August 2008
Ross Tester
Versatile LED/Lamp Flasher SC 11009081, EPE 752 September 2008
Thomas Scarborough
DSP Musicolour Light Show; Pt.4 SC 10107081/10107082/10107083, EPE 759/760/764 September 2008
Mauro Grassi; Notes/errata: July & September 2008; Kit(s): Altronics K5803
12V Speed Controller/Lamp Dimmer SC 05111081, EPE 781, 05car111 November 2008
Leo Simpson; Kit(s): Altronics K6008, Jaycar KC5382
Multi-Function Remote-Controlled Lamp Dimmer SC 10104092, EPE 799 April 2009
Mauro Grassi; Notes/errata: May 2009
Ginormous 7-Segment LED Panel Meter Display EPE 831/832 December 2009
Greg Radion & Ross Tester; Kit(s): Ocean Controls KTA-255 & KTA-256
A Solar-Powered Lighting System SC 16105101, EPE 845 May 2010
John Clarke; Kit(s): Altronics K6028
A Solar-Powered Lighting System, Pt.2 SC 16105101, EPE 845 June 2010
John Clarke; Kit(s): Altronics K6028
Digital Controller For Christmas Light Shows October 2010
SC 16110101/16110102/16110111, EPE 870/871
Nicholas Vinen and Jim Rowe; Notes/errata: November 2010, February & June 2011
Kit(s): Altronics K5885/K5886
Digital Lighting Controller For Christmas Light Shows, Pt.2 November 2010
SC 16110101/16110102/16110111, EPE 870/871
Nicholas Vinen and Jim Rowe; Notes/errata: November 2010, February & June 2011
Kit(s): Altronics K5885/K5886
Digital Lighting Controller For Christmas Light Shows, Pt.3 December 2010
SC 16110101/16110102/16110111, EPE 870/871
Nicholas Vinen; Notes/errata: November 2010, February & June 2011
Kit(s): Altronics K5885/K5886
LED Dazzler: A Driver Circuit For Really Bright LEDs SC 16102111 February 2011
Nicholas Vinen; Notes/errata: April 2011; Kit(s): RMS Parts
Digital LED Lighting Controller For Christmas Lights SC 16110111 October 2011
Nicholas Vinen; Kit(s): Altronics K5887
A Really Bright 10W LED Floodlight; Kit(s): Oatley Electronics K336 & K318 February 2012
Branko Justic & Ross Tester
LED Musicolour: Light Up Your Music, Pt.1 SC 16110121/16110122/16110123 October 2012
Nicholas Vinen; Kit(s): Altronics K5804
LED Musicolour: Light Up Your Music, Pt.2 SC 16110121/16110122/16110123 November 2012
Nicholas Vinen; Kit(s): Altronics K5804
A Seriously Bright 20W LED Floodlight; Kit(s): Oatley K329 November 2012
Branko Justic, Ross Tester
Build A Solar-Powered Skylight; Kit(s): Oatley K328 January 2013
Ross Tester
AAA-Cell LED Torch Driver SC 16102131 March 2013
John Clarke & Ross Tester
Demonstration Circuits For Human Colour Vision July 2013
James Goding; Notes/errata: August 2013
Build A LED Party Strobe SC 16101141 January 2014
Ross Tester & Nicholas Vinen
RGB LED Strip Controller/Driver SC 16105141 May 2014
Nicholas Vinen
A Really Bright 12/24V LED Oyster Light April 2015
Kit(s): www.oatleyelectronics.com (Cat No. K400)
Ross Tester
LED Party Strobe Mk2 SC 16101141 August 2015
Ross Tester
Solar MPPT Charger & Lighting Controller, Pt.1 SC 16101161 February 2016
John Clarke; Kit(s): Altronics K6027
Solar MPPT Charger & Lighting Controller, Pt.2 SC 16101161 March 2016
John Clarke; Kit(s): Altronics K6027
Two Micropower LED Flasher Modules SC 16109161/2 October 2016
John Clarke
Ultra-low-voltage Versatile LED Flasher SC 16110161 February 2017
Nicholas Vinen; Kit(s): http://www.siliconchip.com.au/Shop/20/4125
Oh Christmas tree, oh Christmas tree... SC 16107181 November 2018
Tim Blythman; Kit(s): SC4749
Amazing light display from our LED Christmas tree... SC 16107181 December 2018
Tim Blythman; Kit(s): SC4749
Versatile Trailing Edge Dimmer with Touch Plate & IR SC 10111191 February 2019
John Clarke
Versatile Trailing Edge Dimmer – Part 2 SC 10111191/2/3 March 2019
John Clarke
Flip-dot Message Display SC 19111181/2/3/4 April 2019
Tim Blythman; Kit(s): SC4950
Discrete Logic Random Number Generator SC 16106191 August 2019
Tim Blythman
Low-cost Christmas project: twinkle, twinkle little Tree! SC16111191 November 2019
Tim Blythman; Kit(s): SC5180
Flexible Digital Lighting Controller, part 1 SC 16110202, SC 16110203 October 2020
Tim Blythman
Eight Small LED Christmas Ornaments 16111191/3/4/5/6/7/8/9 November 2020
Tim Blythman; Kit(s): SC5579
Two Large LED Christmas Stars 16109201/2 November 2020
Barry Cullen & Tim Blythman; Kit(s): SC5525
Flexible Digital Lighting Controller, part 2 16110202/3 November 2020
Tim Blythman
Flexible Digital Lighting Controller, part 3 16110205 December 2020
Tim Blythman
Digital Lighting Controller Translator SC 16110206 December 2021
Tim Blythman; Kit(s): Altronics K5888
Oatley LED Lighting & Driver Kits; Kit(s): Oatley K491PK1-4 May 2022
John Clarke
Buck-Boost LED Driver SC 16103221 June 2022
Tim Blythman; Kit(s): SC6292
Mini LED Driver SC 16106221 September 2022
Tim Blythman; Kit(s): SC6405
Christmas LED Icicle Decoration SC 16111192 November 2022
Tim Blythman
Laser Communicator SC 16102241/2 March 2024
Phil Prosser & Zak Wallingford
Lava Lamp Display July 2024
Tim Blythman
No-IC Colour Shifter September 2024
Tim Blythman
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17 SOLAR ENERGY, WIND POWER AND RENEWABLES
Battery Charger For Solar Panels; Kit(s): Jaycar November 1991
Steve Calder / Hycal Electronics; Notes/errata: February 1992
12VDC/240VAC 40-Watt Inverter SC 11203921 February 1992
John Clarke; Notes/errata: July1992, October 1992; Kit(s): Altronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.1 October 1992
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.2 November 1992
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.3 December 1992
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.4 January 1993
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
A 2kW 24VDC To 240VAC Sinewave Inverter; Pt.5 February 1993
SC 11309921/11309922/11309923/11309924
John Clarke; Kit(s): Rod Irving Electronics
Build A Solar Charger For 12V Batteries OESOLARSC March 1993
Branco Justic; Kit(s): Oatley Electronics
A Solar-Powered Electric Fence; Kit(s): Oatley Electronics April 1993
Branco Justic; Notes/errata: January 1994
A Switching Regulator For Solar Panels January 1994
Otto Priboj
Build A Sun Tracker For Solar Panels SC 13101951 January 1995
Nenad Stojadinovic
Build A Solar Panel Regulator; Kit(s): Futurlec December 1999
Design by Alan Bonnard
Cybug - The Solar Fly; Kit(s): DSE September 2000
Ross Tester
A Sun-Seeking Sunflower; Kit(s): DSE K3563 March 2001
Craig Maynard & Ross Tester
12/24V Intelligent Solar Power Battery Charger K009B March 2002
Ross Tester; Notes/errata: April 2002, May 2003; Kit(s): Oatley Electronics
Our Fantastic Human-Powered LED Torches February 2004
Julian Edgar
Solar-Powered Wireless Weather Station SC 07112041 December 2004
Nenad Stojadinovic
Alternative Power Regulator; Kit(s): Oatley Electronics K222 June 2005
Ross Tester; Notes/errata: August 2005
Mini Solar Battery Charger; Kit(s): Oatley Electronics K251A February 2008
Branko Justic
A Solar-Powered Intruder Alarm For Sheds & Boats SC 03103101, EPE 837 March 2010
John Clarke; Kit(s): Altronics K6026 Jaycar KC5494
A Solar-Powered Lighting System SC 16105101, EPE 845 May 2010
John Clarke; Kit(s): Altronics K6028
A Solar-Powered Lighting System, Pt.2 SC 16105101, EPE 845 June 2010
John Clarke; Kit(s): Altronics K6028
Build A 12/24V 3-Stage Solar Charge Controller SC 14102111/14102112 February 2011
John Clarke; See March 2012 for mods; Kit(s): Jaycar KC5500
12V 20-120W Solar Panel Simulator SC 04103111 March 2011
John Clarke
12/24V MPPT Solar Charge Controller Rev.1 SC 14102112 March 2012
John Clarke; Kit(s): Altronics K6029
Build A Solar-Powered Skylight; Kit(s): Oatley K328 January 2013
Ross Tester
Simple 12V/24V Regulator For 70V Solar Panels Oatley K326-3 September 2013
Branko Justic; Kit(s): Oatley K330P
Solar MPPT Charger & Lighting Controller, Pt.1 SC 16101161 February 2016
John Clarke; Kit(s): Altronics K6027
Solar MPPT Charger & Lighting Controller, Pt.2 SC 16101161 March 2016
John Clarke; Kit(s): Altronics K6027
Bargain Solar Cells – and what to do with them! March 2017
Kit(s): Oatley Electronics SP4950, SP6090, IT104-107
Ross Tester
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18 POWER SUPPLIES AND REGULATORS
Dual Tracking ±18.5V Power Supply SC 041-188 January 1988
John Clarke & Leo Simpson; Kit(s): Altronics
Universal Power Supply Board 04106881 August 1988
Leo Simpson; Notes/errata: November 2004
Kit(s): Altronics K3215, DSE, Jaycar KC5038
Dual Tracking ± 50V Power Supply SC 04104901 April 1990
John Clarke & Greg Swain; Notes/errata: October 1990
Load Protector For Power Supplies SC 04204901 June 1990
John Clarke & Leo Simpson
Low Cost Dual Power Supply SC 04107901 July 1990
John Crichton
Alarm Power Supply With Battery Backup ZA-1454 September 1990
Greg Swain; Kit(s): DSE K8402
13.5V 25A Power Supply For Transceivers, Pt.1 SC 14105911/14105912 May 1991
John Clarke & Leo Simpson
13.5V 25A Power Supply For Transceivers, Pt.2 SC 14105911/14105912 June 1991
John Clarke & Leo Simpson
Adjustable 0-45V 8A Power Supply, Pt.1 SC 04201921 January 1992
John Clarke; Notes/errata: Refer April 1998 for revised & updated version
Kit(s): Altronics
Adjustable 0-45V 8A Power Supply, Pt.2 SC 04201921 February 1992
John Clarke; Notes/errata: Refer April 1998 for revised & updated version
Kit(s): Altronics
The Eliminator SC 04104921 May 1992
Marque Crozman
40V 3A Variable Power Supply; Pt.1 SC 04202941 January 1994
John Clarke; Notes/errata: October 1994 ; Kit(s): Altronics K3330
A Switching Regulator For Solar Panels January 1994
Otto Priboj
40V 3A Variable Power Supply; Pt.2 SC 04202941 February 1994
John Clarke; Notes/errata: October 1994 ; Kit(s): Altronics K3330
Discrete Dual Supply Voltage Regulator SC 04103941 April 1994
Darren Yates; Notes/errata: September 1994
Beginner's Dual Rail Variable Power Supply SC 04110941 October 1994
Darren Yates; Kit(s): Altronics, DSE
Computer Controlled Dual Power Supply; Pt.1 SC 04101971/04101972 January 1997
Rick Walters
Computer Controlled Dual Power Supply; Pt.2 SC 04101971/04101972 February 1997
Rick Walters
Power Supply For Stepper Motor Cards SC 10112971 December 1997
Rick Walters; Notes/errata: Refer Projects July-September & December 1997
Kit(s): Jaycar
40V 8A Adjustable Power Supply; Pt.1 SC 04304981 April 1998
John Clarke; Notes/errata: Refer project January/February 1992
Kit(s): Altronics K3365
40V 8A Adjustable Power Supply; Pt.2 SC 04304981 May 1998
John Clarke; Notes/errata: Refer project January/February 1992
Kit(s): Altronics K3365
A Regulated 12V DC Plugpack December 1998
Ross Tester
Making Use Of An Old PC Power Supply December 1998
Leo Simpson; Notes/errata: January 1999
Build A Solar Panel Regulator; Kit(s): Futurlec December 1999
Design by Alan Bonnard
The PC Powerhouse SC 12112991 December 1999
Design by Barry Hubble; Notes/errata: January 2000; Kit(s): Jaycar
Dual Tracking ±18.5V Power Supply SC 041-188 January 2000
John Clarke & Leo Simpson
Universal Power Supply Board For Op Amps SC 04106881 January 2000
Leo Simpson
Beginner’s Variable Dual-Rail Power Supply SC 04110941 January 2000
Darren Yates
40V 3A Variable Power Supply; Pt.1 SC 04202941 January 2000
John Clarke
40V 3A Variable Power Supply; Pt.2 SC 04202941 January 2000
John Clarke
Build A Hot Wire Cutter April 2000
Leo Simpson; Notes/errata: Refer Glowplug Driver, March 2000
Li'l Powerhouse Switchmode Power Supply; Pt.1 SC 04106001 June 2000
Peter Smith & Leo Simpson; Notes/errata: September 2000, August 2001
Kit(s): Altronics
Li'l Powerhouse Switchmode Power Supply; Pt.2 SC 04106001 July 2000
Peter Smith & Leo Simpson; Notes/errata: September 2000, August 2001
Kit(s): Altronics
PowerPak: A Multi-Voltage Power Supply SC 11305011 May 2001
Peter Smith; Notes/errata: June 2001; Kit(s): Altronics
Easy-To-Build Bench Power Supply SC 04104021/04104022 April 2002
Jim Rowe; Kit(s): Altronics K3200 (discontinued), DSE, Jaycar KC5331 (discontinued)
Constant High-Current Source; Kit(s): Oatley Electronics June 2002
Ross Tester
50-Watt DC Electronic Load SC 04109021 September 2002
Peter Smith; Notes/errata: September 2004; Kit(s): DSE K3444
Adjustable DC-DC Converter For Cars SC 11106031, EPE 578 June 2003
John Clarke; Kit(s): Altronics K6320, DSE K3234, Jaycar KC5358
A Dirt-Cheap, High-Current Power Supply October 2003
Col Hodgson
High-Efficiency Power Supply For 1W Star LEDs SC 11101041, EPE 600 January 2004
Peter Smith; Notes/errata: February 2004; Kit(s): Altronics K1000
3V To 9V DC-DC Converter SC 11103041 March 2004
Peter Smith; Notes/errata: September 2004; Kit(s): Altronics K6330 Jaycar KC5391
Power Supply Demo Design SC 04103041 March 2004
Peter Smith; Notes/errata: May 2004
StarPower: A Switching Supply For Luxeon Star LEDs SC 11105041, EPE 615 May 2004
Peter Smith; Notes/errata: September 2006; Kit(s): Altronics K1010 Jaycar KC5389
Regulated High-Voltage Supply For Valve Amplifiers; Kit(s): DSE K3438 July 2004
Leonid Lerner
Alternative Power Regulator; Kit(s): Oatley Electronics K222 June 2005
Ross Tester; Notes/errata: August 2005
Studio Series Stereo Preamplifier SC 01109051/ 01109052 (power supply) EPE 658 October 2005
Peter Smith; Notes/errata: February 2006
Kit(s): Altronics K5501/K5502, Jaycar KC5418 (power supply only)
Adjustable 1.3-22V Regulated Power Supply SC 10105071, EPE 698 May 2007
John Clarke; Kit(s): Jaycar KC5446
High-Current Adjustable Voltage Regulator SC 11105081, EPE 769 May 2008
Jim Rowe; Kit(s): Jaycar KC5463
Dual-Tracking ±19V Power Supply, Pt.1 June 2010
SC 04206101/04206102/04206103, EPE 851-853
Nicholas Vinen; Notes/errata: August & September 2010, January & August 2011
Kit(s): Altronics K3218, EPE PCB851-853
An Intelligent 12V Fan Controller SC 18107101, EPE 857 July 2010
Geoff Graham; Kit(s): Altronics K6120
Dual-Tracking ±19V Power Supply, Pt.2 July 2010
SC 04206101/04206102/04206103, EPE 851-853
Nicholas Vinen; Notes/errata: August & September 2010, January & August 2011
Kit(s): Altronics K3218, EPE PCB851-853
A Hot-Wire Cutter With Inbuilt Heat Controller SC 18112101 December 2010
John Clarke
Universal Voltage Regulator Board SC 18103111 March 2011
Nicholas Vinen; Kit(s): Jaycar KC5501
MiniReg 1.3-22V Adjustable Regulator SC 18112111 December 2011
John Clarke
Simple 1.2-20V 1.5A Switching Regulator SC 18102121 February 2012
Nicholas Vinen; Kit(s): Altronics K6340 & Jaycar KC5508
40V Switchmode Bench Power Supply, Pt.1 SC 18104141 April 2014
Nicholas Vinen; Kit(s): Case + panels: Altronics K3205
40V Switchmode/Linear Bench Power Supply, Pt.2 SC 18104141 May 2014
Nicholas Vinen; Kit(s): Case + panels: Altronics K3205
40V Switchmode/Linear Bench Power Supply, Pt.3 June 2014
Kit(s): Case + panels: Altronics K3205
Nicholas Vinen
48V Dual Phantom Power Supply SC 18112141 November 2014
John Clarke
4-Output Universal Voltage Regulator 18105151 May 2015
Jim Rowe & Nicholas Vinen
Install USB Charging Points In Your Car SC 18107151 July 2015
Nicholas Vinen
USB Charger Regulator With Low-Battery Cut-Out SC 18107152 September 2015
Nicholas Vinen
Deluxe Touchscreen eFuse, Part 1 SC 18106171 July 2017
Nicholas Vinen
Mains Power Supply for Battery Valve Radio Sets SC 18108171/2/3/4 August 2017
Ian Robertson
Deluxe Touchscreen eFuse, Part 2 SC 18106171 August 2017
Nicholas Vinen
Deluxe eFuse, Part 3: using it! SC 18106171 October 2017
Nicholas Vinen
45V, 8A Bench Power Supply to build SC 18111181 October 2019
Tim Blythman; Kit(s): Altronics short form kit TBA
High performance linear power supply – part two SC18111181 November 2019
Tim Blythman; Kit(s): Altronics short form kit TBA
High performance linear power supply – part three SC18111181 December 2019
Tim Blythman; Kit(s): Altronics short form kit TBA
A homemade Switchmode 78XX replacement SC 18105201 August 2020
Tim Blythman; Kit(s): SC5553
Power Supply for Battery-Powered Vintage Radios 11111201 December 2020
Ken Kranz & Nicholas Vinen
Dual Battery Lifesaver 11111202 December 2020
Nicholas Vinen
Arduino-based Adjustable Power Supply SC 18106201 February 2021
Tim Blythman
Programmable Hybrid Lab Supply with WiFi – Part 1 SC 18104211/2 May 2021
Richard Palmer
Variac-based Mains Voltage Regulation SC 10103211 May 2021
Dr Hugo Holden
Programmable Hybrid Lab Supply with WiFi – Part 2 SC 18104211/2 June 2021
Richard Palmer
Dual Hybrid Power Supply – Pt1 SC 18107211-2 February 2022
Phil Prosser; Kit(s): SC6096, SC6121 (partial)
Dual Hybrid Power Supply, part two SC 18107211-2 March 2022
Phil Prosser; Kit(s): SC6096, SC6121
30V 2A Bench Supply, Part 2 SC 04105221/2 November 2022
John Clarke
Dual-channel Breadboard PSU SC 04112221 December 2022
Tim Blythman; Kit(s): SC6751
Voltage Inverter / Doubler SC 04107222 September 2023
John Clarke
30V 2A Bench Supply, Mk2 - Pt2 SC 04107223, 04105222 October 2023
John Clarke
Ideal Diode Bridge Rectifiers SC 18101241-6 December 2023
Phil Prosser
Coin Cell Emulator SC 18101231 December 2023
Tim Blythman
DC Supply Protectors SC 08106241-3 June 2024
John Clarke
Discrete Ideal Bridge Rectifiers SC 18108241/2 September 2024
Phil Prosser & Ian Ashford; Kit(s): SC6987/8
Dual-Rail Load Protector SC 18109241 October 2024
Stefan Keller -Tuberg; Kit(s): SC7366
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19 TIMERS, COUNTERS, SEQUENCERS AND CLOCKS
Build a Slave Flash Trigger SC 13-1-588 April 1988
John Clarke & Greg Swain
Build the Garbage Reminder SC 08108891 August 1989
Johnno 'Blue Singlet' Clarke; Notes/errata: October 1989
Workout Timer For Aerobics Classes SC 08102901 March 1990
Steve Calder
Universal Safety Timer For Appliances SC 10107901 August 1990
John Clarke
Low Cost 3-Digit Counter Module SC 0430990 September 1990
Darren Yates; Notes/errata: October 1990; Kit(s): Jaycar
A Really Snazzy Egg Timer SC 08110901 November 1990
Darren Yates
Build A Telephone Call Timer SC 12104921 March 1992
Darren Yates
8-Station Automatic Sprinkler Timer SPV1 July 1992
Graham Blowes; Kit(s): Mantis Micro
An Off-Hook Timer For Telephones SC 12106921 July 1992
Darren Yates
A 24-Hour Sidereal Clock For Astronomers SC 04103931 March 1993
Bob Flynn
A Digital Clock With Battery Back-Up SC SC04101931/SC04101932/SC04101933 April 1993
Darren Yates
A Microprocessor-Based Sidereal Clock; Kit(s): John Western August 1993
John Western
Courtesy Light Switch-Off Timer For Cars SC 05209931 October 1993
John Clarke
Build A Binary Clock; Kit(s): Prototype Electronics October 1993
Michael Vos
Build A Jumbo Digital Clock SC 04108931 November 1993
Darren Yates
Steam Train Whistle & Diesel Horn Simulator SC 09305941/05207941 July 1994
John Clarke; Kit(s): Altronics, DSE, Jaycar
A Novel Alphanumeric Clock November 1994
Anthony Nixon
Build An Oil Change Timer For Your Car SC 05102951 February 1995
Darren Yates
A Photographic Timer For Darkrooms SC 10304951 April 1995
John Clarke; Notes/errata: November 1996; Kit(s): DSE, Jaycar
The Rain Brain Automatic Sprinkler Controller; Kit(s): Mantis Micro Products January 1996
Graham Blowes
The Teeny Timer: A Low-Tech Timer With No ICs April 1997
Leo Simpson
Turbo Timer For Your Car SC 05411981 November 1998
John Clarke; Notes/errata: February 1999; Kit(s): Altronics K4060, Jaycar KC5254
A Morse Clock - Look Mum, No Hands! SC 06112001 December 2000
Leon Williams
Big-Digit 12/24-Hour Clock SC 0410311/0410312 March 2001
John Clarke; Notes/errata: May 2001, September 2001
Kit(s): www.kitsrus.com Kit 73
Microcontroller-Based 4-Digit Counter Modules; Kit(s): Jaycar KD6084 & KD6085 May 2001
Peter Crowcroft & Frank Crivelli; Notes/errata: June 2001
Do Not Disturb Telephone Timer SC 12107011 July 2001
John Clarke; Kit(s): Jaycar
Pic-Toc - A Simple Digital Alarm Clock SC 04207011 July 2001
Michael Moore; Kit(s): Altronics K8510
40MHz 6-Digit Frequency Counter Module SC 04108011/04108012 August 2001
David L Jones
4-Way Event / Race / Anything Timer; Kit(s): eLabtronics February 2002
Ross Tester
Versatile Multi-Mode Timer K141 April 2002
Frank Crivelli & Peter Crowcroft; Kit(s): Ozitronics
4-Digit Crystal-Controlled Timing Module November 2002
Kit(s): Oatley Electronics, Ozitronics K148
Frank Crivelli & Peter Crowcroft
Test Your Reflexes With A Digital Reaction Timer SC 04106031, EPE 569 June 2003
Jim Rowe; Kit(s): Jaycar KC5360
A Digital Timer For Less Than $20 August 2003
Ross Tester & Jess Benning
A Programmable PIC-Powered Timer SC 04111031 November 2003
Trent Jackson
QuickBrake: For Increased Driving Safety SC 05103041/05car071 March 2004
Julian Edgar and John Clarke
Notes/errata: Also published in Performance Electronics For Cars 2004
Kit(s): Jaycar KC5373
Versatile Auto Timer SC 05car081 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5379
4-Minute Shower Timer; Kit(s): Gum Leaf Energy January 2005
Ross Tester
Build A Professional Sports Scoreboard, Pt.1; Kit(s): Jaycar KC5408 March 2005
Jim Rowe; See August 2005 for Enhanced Model
A Lap Counter For Swimming Pools SC 08103051, EPE 610 March 2005
Rick Walters; Notes/errata: April 2005
Build A Professional Sports Scoreboard, Pt.2; Kit(s): Jaycar KC5408 April 2005
Jim Rowe; See August 2005 for Enhanced Model
Pro Scoreboard, Pt III; Kit(s): Jaycar KC5408 May 2005
Jim Rowe; See August 2005 for Enhanced Model
The Mesmeriser: A LED Clock With A Difference; Kit(s): Jaycar KC5404/KC5416 June 2005
Scott Melling
Programmable Flexitimer SC 04108051/04108052/04108053/04108054, EPE 631-634 August 2005
Jim Rowe; Notes/errata: December 2005
Kit(s): DSE K3580 Jaycar KC5415 (discontinued)
Enhanced Sports Scoreboard; Kit(s): Jaycar KC5408 August 2005
Jim Rowe
Ceiling Fan Timer SC 10110051 October 2005
John Clarke
Novel PICAXE LED Chaser Clock; Kit(s): AXE115S August 2006
Ron Russo & Clive Seager
Easy-To-Build 12V Digital Timer Module ZA0019-ZA0020 October 2006
Bill De Rose & Ross Tester; Kit(s): DSE K3582
Build A 6-Digit Nixie Clock, Pt.1 July 2007
Kit(s): Gless Audio glesstron@msn.com 0403 055 374
David Whitby; Notes/errata: October 2013
Adaptive Turbo Timer SC 05108071 August 2007
John Clarke; Kit(s): Jaycar KC5451
Build A 6-Digit Nixie Clock, Pt.2 August 2007
Kit(s): Gless Audio glesstron@msn.com 0403 055 374
David Whitby; Notes/errata: October 2013
One-Pulse-Per Second Driver For Quartz Clocks SC 04103081, EPE 725 March 2008
Jim Rowe
PIC-Based Flexitimer Mk.4 EPE 763 June 2008
Jim Rowe; Kit(s): Jaycar KC5464 (discontinued)
USB Clock With LCD Readout, Pt.1 SC 04110081, EPE 779 October 2008
Mauro Grassi; Notes/errata: November 2008
Versatile Special Function Timer SC 05110081/05car081 October 2008
John Clarke; Kit(s): Altronics K6140
USB Clock With LCD Readout, Pt.2 SC 04110081, EPE 779 November 2008
Mauro Grassi
A GPS-Synchronised Clock SC 04203091 March 2009
Geoff Graham; Notes/errata: April & May 2009
Kit(s): Altronics K1129 (discontinued) GPS Module K1131
Dead-Accurate 6-Digit GPS-Locked Clock, Pt.1 May 2009
SC 04105091/07106091/04208091, EPE 800/806
Jim Rowe; Notes/errata: July, October & Decemberf 2009, March 2011, April 2012
Kit(s): GPS engine module from Altronics
GPS Driver Module For The 6-Digit Clock, Pt.2 June 2009
SC 04105091/07106091/04208091, EPE 800/806
Jim Rowe; Notes/errata: July, October & Decemberf 2009, March 2011, April 2012
Kit(s): GPS engine module from Altronics
Autodim Add-On For The 6-Digit GPS Clock SC 04208091, EPE 819 September 2009
Jim Rowe
GPS Synchronisation For Clocks With Sweep Hands SC 04203091 November 2009
Geoff Graham; Notes/errata: Refer project March 2009
Remote-Controlled Digital Up/Down Timer SC 19108101/19108102 August 2010
Nicholas Vinen; Notes/errata: September 2010
Kit(s): Altronics K6145 Jaycar KC5496
VersaTimer/Switch With Self-Latching Relay SC 19106111 June 2011
John Clarke; Kit(s): Altronics K6125
Timer For Fans And Lights SC 10108121 August 2012
Nicholas Vinen; Kit(s): Altronics K6047, Jaycar KC5512
Garbage & Recycling Reminder SC 19111121 January 2013
John Clarke; Kit(s): Jaycar KC5518
Programmable Mains Timer With Remote Switching SC 19112141/19112142 November 2014
John Clark; Kit(s): Altronics K6130
6-Digit Retro Nixie Clock Mk.2, Pt.1 19102151/NX15L & 19102152/NX14U February 2015
Nicholas Vinen; Kit(s): Gless Audio (discontinued)
6-Digit Retro Nixie Clock Mk.2, Pt.2 19102151/NX15L & 19102152/NX14U March 2015
Nicholas Vinen; Kit(s): Gless Audio (discontinued)
High Visibility 6-Digit LED GPS Clock 19110151 December 2015
Nicholas Vinen
Speech Timer For Contests & Debates 19111151 December 2015
John Clarke
High Visibility 6-Digit LED GPS Clock, Pt.2 January 2016
Nicholas VInen
Touchscreen Super Clock SC 07102122 July 2016
Geoff Graham; Kit(s): SC Micromite LCD BackPack kit
GPS-synchronised Analog Clock Driver SC 04202171 February 2017
John Clarke
All-new Swimming Pool Lap Counter SC 19102171 March 2017
John Clarke
The Clayton’s “GPS” time signal generator April 2018
Tim Blythman
The USB Flexitimer: accurately timed switching SC 19106181 June 2018
John Clarke and Nicholas Vinen
Super Clock now shows your electricity tariff July 2018
Kit(s): Micromite LCD BackPack V2
Tim Blythman
How’s your memory? Build the Event Reminder SC 19107181 July 2018
John Clarke
Ol' Timer II SC 19104201 July 2020
Tim Blythman
Two Classic LED Metronomes SC 23111211/2 January 2022
Randy Keenan
New GPS-Synchronised Analog Clock SC 19109221 September 2022
Geoff Graham; Kit(s): SC6472
WiFi Time Source for GPS Clocks June 2023
Tim Blythman
Coffee Grinder Timer September 2023
Flavio Spedalieri
Raspberry Pi Clock Radio, Pt1 SC 19101241/2 January 2024
Stefan Keller-Tuberg
Raspberry Pi Clock Radio, Pt2 SC 19101241/2 February 2024
Stefan Keller-Tuberg
Beer Can Filler August 2024
Brandon Speedie
Compact OLED Clock/Timer SC 19101231 September 2024
Tim Blythman; Kit(s): SC6979
JMP014 - Analog pace clock & stopwatch November 2024
Tim Blythman
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20 BOATING/NAUTICAL
Twin-Engine Speed Match Indicator For Boats SC 04111091, EPE 824 November 2009
John Clarke; Kit(s): Altronics K6220 Jaycar KC5488
A Solar-Powered Intruder Alarm For Sheds & Boats SC 03103101, EPE 837 March 2010
John Clarke; Kit(s): Altronics K6026 Jaycar KC5494
Ultrasonic Anti-Fouling Unit For Boats, Pt.1 SC 04109101, EPE 866 September 2010
Leo Simpson & John Clarke; Kit(s): Jaycar KC5498
Build A GPS Boat Computer SC 05101101 October 2010
Geoff Graham; Kit(s): Altronics K1143
Ultrasonic Anti-Fouling Unit For Boats, Pt.2 SC 04109101, EPE 866 November 2010
Leo Simpson; Kit(s): Jaycar KC5498
Rudder Position Indicator For Power Boats July 2011
SC 20107111/20107112/20107113/20107114
Nicholas Vinen
Rudder Position Indicator For Power Boats, Pt.2 August 2011
SC 20107111/20107112/20107113/20107114
Nicholas Vinen
Touch-Screen Boat Computer With GPS SC 07102122 April 2016
Geoff Graham; Kit(s): Silicon Chip (Micromite LCD BackPack)
New Marine Ultrasonic Anti-Fouling Unit SC 04104171 May 2017
John Clarke; Kit(s): Jaycar KC-5535, KC-5536
New Marine Ultrasonic Anti-Fouling Unit, Part 2 SC 04104171 June 2017
Leo Simpson & John Clarke; Kit(s): Jaycar KC5535, KC5536
Digital Compass July 2024
Tim Blythman
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21 WEATHER/CLIMATE/TEMPERATURE/HUMIDITY/ETC
Universal Temperature Controller OETC89 June 1989
Branco Justic & Jeff Monegal; Kit(s): Oatley Electronics
Digital Altimeter For Gliders & Ultralights, Pt.1 September 1991
SC 04108911/04108912/04108913
John Clarke; Notes/errata: January 1992; Kit(s): Altronics
Three-Function Home Weather Station SC 04201931/04201932 April 1993
John Clarke
An AM Radio For Aircraft Weather Beacons SC 06107941 September 1994
Darren Yates; Kit(s): DSE
Build A Digital Anemometer; Kit(s): Altronics March 1999
Julian Edgar
Programmable Thermostat/Thermometer April 1999
Keith Rippon
Switching Temperature Controller; Kit(s): Oatley Electronics August 1999
Branco Justic & Ross Tester; Notes/errata: October 1999, February 2000
A Peltier-Powered Can Cooler September 1999
Ross Tester
Electronic Wind Vane With 16-LED Display SC 04103001/04103002/0410300304103004 March 2000
John Clarke
Build A Temperature Logger; Kit(s): Softmark April 2000
Mark Roberts
Automatic Rain Gauge With Digital Readout SC 04105001 June 2000
John Clarke; Notes/errata: February 2001; Kit(s): Jaycar
Programmable Electronic Thermostat; Kit(s): Clinch Security Systems November 2000
Michael Jeffery; Notes/errata: Refer project June 1997
An Automotive Thermometer SC 05110011/05110012 October 2001
John Clarke; Kit(s): Altronics K4349
A Digital Thermometer/Thermostat SC 04208022 August 2002
John Clarke; Notes/errata: October 2002; Kit(s): Altronics K6110, DSE K3016
Peltier-Effect Tinnie Cooler March 2003
Kit(s): Peltier Effect module (Oatley Electronics)
Ross Tester
VHF Receiver For Weather Satellites SC 06112031 December 2003
Jim Rowe; Notes/errata: January 2004 p38, February 2004, April 2004, October 2004
Kit(s): DSE K3226 (no longer available)
Antenna & RF Preamp For Weather Satellites SC 06101041 January 2004
Jim Rowe; Notes/errata: April 2004
PICAXE-18X 4-Channel Datalogger January 2004
Clive Seager; Notes/errata: August 2004
PICAXE-18X 4-Channel Datalogger; Pt.2 February 2004
Clive Seager; Notes/errata: August 2004
PICAXE-18X 4-Channel Datalogger; Pt.3 March 2004
Clive Seager; Notes/errata: August 2004
Fridge-Door Open Alarm SC 03206041, EPE 587 June 2004
John Clarke; Kit(s): DSE K7216
Solar-Powered Wireless Weather Station SC 07112041 December 2004
Nenad Stojadinovic
High Temperature Digital Thermometer SC 05car041 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5376 (Discontinued)
Temperature Switch SC 05car101 December 2004
Julian Edgar & John Clarke; Kit(s): Jaycar KC5381
The Coolmaster Fridge/Freezer Temperature Controller SC 10108051, EPE 675 June 2005
Jim Rowe; Notes/errata: September 2005; Kit(s): Jaycar KC5413
PICAXE-Powered Thermostat & Temperature Display February 2006
Kit(s): Clinch Electronic Systems
Michael Jeffery; Notes/errata: April 2006
Aquarium Temperature Alarm; Kit(s): SC 03109061 September 2006
Peter Smith
A Versatile Temperature Switch SC 05car101, EPE 678 January 2007
John Clarke & Julian Edgar; Notes/errata: April 2006
Kit(s): Jaycar KC5381 (discontinued), see Temperature Switch Mk2 June 2018
A PID Temperature Controller July 2007
Leonid Lerner; Notes/errata: Refer project August 2002
Simple Data-Logging Weather Station, Pt.1 SC 04109071/04109072, EPE 718-719 September 2007
Glenn Pure; Notes/errata: November 2007
Simple Data-Logging Weather Station; Pt.2 SC 04109071/04109072, EPE 718-719 October 2007
Glenn Pure; Notes/errata: November 2007
Tempmaster Electronic Thermostat Mk.2 SC 10202091, EPE 792 February 2009
Jim Rowe; Kit(s): Jaycar KC5476
PICAXE Humidity Measuring Using The HopeRF HH10D June 2009
Wayne Geary & Stan Swan
Precision Temperature Logger & Controller, Pt.1 SC 10101101 January 2010
Leonid Lerner
Precision Temperature Logger & Controller, Pt.2 SC 10101101 February 2010
Leonid Lerner
A Very Accurate Thermometer/Thermostat EPE 840 March 2010
Michael Dedman (words by Nicholas Vinen); Kit(s): Altronics K6115
High-Temperature Thermometer/Thermostat SC 21105121/21105122/21105123 May 2012
John Clarke
Do-It-Yourself Seismograph With Tsunami Alarm SC 21102131 February 2013
Dave Dobeson
Build A GPS Tracker & Record Your Journeys SC 05112131 November 2013
Geoff Graham; Kit(s): Jaycar KC5525
The Tempmaster Thermostat Mk.3 SC 21108141 August 2014
Jim Rowe; Kit(s): Jaycar KC5529
WeatherDuino Pro2 Wireless Weather Station, Pt.1 March 2015
A. Caneira & Trevor Robinson
WeatherDuino Pro2 Wireless Weather Station, Pt.2 April 2015
Armindo Caneira & Trevor Robinson
WeatherDuino Pro2 Wireless Weather Station, Pt.3 May 2015
Armindo Caneira & Trevor Robinson
Raspberry Pi Temperature/Humidity/Pressure Monitor Pt.1 January 2016
Greg Swain
Raspberry Pi Temperature/Humidity/Pressure Monitor, Pt.2 February 2016
Greg Swain
1-Wire Digital Temperature Sensor For The Raspberry Pi March 2016
Greg Swain & Nicholas Vinen
4-Input Temperature Sensor PCB For The Raspberry Pi SC 24104161 May 2016
Nicholas Vinen & Greg Swain
Universal -33°C to 125°C Temperature Alarm SC 03105161 July 2016
John Clarke; Kit(s): Altronics K1137
One hour project: Kelvin – the very clever cricket SC 08109171 October 2017
John Clarke
Touchscreen Altimeter and Weather station December 2017
Jim Rowe
A Water Tank Level Meter with WiFi and More! SC 21110171 February 2018
Nicholas Vinen
Low cost, Arduino-based 3-Axis Seismograph April 2018
Tim Blythman and Nicholas Vinen
Switch on or off anything with a Temperature Switch 05105181 June 2018
John Clarke
Arduino Seismograph revisited – improving sensitivity April 2019
Tim Blythman
Low cost, high precision thermometer calibrator January 2020
Allan Linton-Smith
Indoor Air Quality Monitor based on a Micromite BackPack February 2020
Geoff Graham
Programmable Thermal Control with a Peltier SC 21109181/2 March 2020
Tim Blythman
Programmable Temperature Control with a Peltier, Part 2 SC 21109181/2 April 2020
Tim Blythman & Nicholas Vinen
An altimeter for your... car? SC 05105201 May 2020
Peter Bennett; Kit(s): SC4237
Pocket Weather Station November 2021
Aarav Garg
Fan Controller & Loudspeaker Protector SC 01111211 February 2022
John Clarke
Watering System Controller SC 15110231 August 2023
Geoff Graham
Thermal Fan Controller May 2024
Tim Blythman
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22 ROBOTICS
Build The Electronic Cockroach SC 08310921 February 1993
John Clarke
Remote-Controlled Electronic Cockroach SC 08307931/08307932 September 1993
John Clarke
Build A PC-Controlled Robot From Surplus Parts November 1995
Tony Mercer; Notes/errata: Refer Stepper Motor article, SC January 1994
A 2-Axis Robot With Gripper; Kit(s): Oatley Electronics December 1997
Graeme Matthewson
The Line Dancer Robot SC 11385991 May 1999
Andersson Nguyen; Notes/errata: August & September 1999; Kit(s): Jaycar
An X-Y Table With Stepper Motor Control; Pt.1 May 1999
Rick Walters & Ken Ferguson
An X-Y Table With Stepper Motor Control; Pt.2 June 1999
Rick Walters & Ken Ferguson
An X-Y Table With Stepper Motor Control; Pt.3 July 1999
Rick Walters
The Hexapod Robot; Kit(s): RobotOz July 1999
Ross Tester
An XYZ Table With Stepper Motor Control; Pt.4 SC 07208991/07208992 August 1999
Rick Walters
Autonomouse The Robot SC 08409991/08409992/08409993 September 1999
John Clarke
An XYZ Table With Stepper Motor Control; Pt.5 SC 10108993 September 1999
Rick Walters
Autonomouse The Robot; Pt.2 SC 08409991/08409992/08409993 October 1999
John Clarke
An XYZ Table With Stepper Motor Control; Pt.6 October 1999
Rick Walters
PICMAN Programmable Robot SC 11101001 January 2000
Andersson Nguyen; Kit(s): Altronics
Cybug - The Solar Fly; Kit(s): DSE September 2000
Ross Tester
Build A Programmable Robot SC 07209041, EPE 602 September 2004
Thomas Scarborough; Notes/errata: November 2004
Adding Infrared To Your Microbric Viper February 2006
Ross Tester
A Line Tracker For Your Microbric Viper March 2006
Ross Tester
Microbric Viper: The Sumo Module April 2006
Ross Tester
The PicoPi Pro Robot January 2019
Kit(s): https://www.picokit.com.au/Store/index.php?route=product/product&path=2&product_id=122
Bao Smith
SPY-DER: a 3D-printed Robot August 2022
Arijit Das
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23 MUSIC & MUSICAL INSTRUMENTS
Syntom - A Synthesised Tom-Tom May 1989
Leo Simpson
Build A 4-Channel Guitar Mixer SC 01101921 January 1992
Darren Yates; See also Circuit Notebook February 1996
Kit(s): DSE, Jaycar
Digital Effects Unit For Musicians SC 01301951/01301952 February 1995
John Clarke; Notes/errata: March 1995; Kit(s): Jaycar
Guitar Headphone Amplifier For Practice Sessions SC 01305951 May 1995
John Clarke; Kit(s): Altronics, DSE, Jaycar
A Low-Cost MIDI Adaptor For Your PC Or Amiga July 1995
George Hansper
Sustain Unit For Electric Guitars SC 01302981 March 1998
John Clarke; Notes/errata: July 1999; Kit(s): Altronics, Jaycar
The Roadies' Friend Cable Tester; Kit(s): Hoad Electronics June 1998
Paul Hoad
A Waa-Waa Pedal For Your Guitar SC 01307981 September 1998
John Clarke; Kit(s): Altronics, DSE, Jaycar
Versatile Electronic Guitar Limiter SC 01308981 October 1998
John Clarke; Kit(s): Jaycar
An FM Transmitter For Musicians; Kit(s): Oatley Electronics November 1998
Branco Justic
Foldback Loudspeaker System For Musicians November 1999
John Clarke
Spring Reverberation Module SC 01402000 January 2000
John Clarke; Kit(s): Jaycar
El-Cheapo Musicians' Lead Tester July 2000
John Clarke
Build A Theremin SC 01207001 August 2000
John Clarke; Kit(s): Altronics, DSE K3015, Jaycar KC5295
Guitar Jammer For Practice & Jam Sessions SC 01110001 October 2000
Peter Smith & Leo Simpson; Kit(s): Altronics K5536, Jaycar
2-Channel Guitar Preamplifier SC 01111001 November 2000
John Clarke; Notes/errata: January 2001, September 2002
Kit(s): Altronics K5340, Jaycar
2-Channel Guitar Preamplifier, Pt.2: Digital Reverb SC 01112001 December 2000
John Clarke; Notes/errata: January 2001, September 2002
Kit(s): Altronics K5340, Jaycar
2-Channel Guitar Preamplifier, Pt.3 SC 01111001/01112001 January 2001
John Clarke; Notes/errata: January 2001, September 2002
Kit(s): Altronics K5340, Jaycar
MIDI-Mate: A MIDI Interface For PCs SC 01201011 February 2001
Jim Rowe; Notes/errata: February 2003; Kit(s): Jaycar
More-MIDI: A Simple MIDI Expansion Box SC 01103011 March 2001
Jim Rowe
A Tremolo Unit For Musicians SC 01104011 April 2001
John Clarke; Kit(s): DSE, Jaycar
A Direct Injection Box For Musicians SC 011080110 August 2001
John Clarke; Notes/errata: September 2001; Kit(s): Altronics, DSE, Jaycar
WidgyBox - A Guitar Distortion Effects Unit SC 01105031, EPE 573 May 2003
Peter Smith; Kit(s): Altronics K5541, Jaycar KC5353
Build A MIDI Theremin, Pt.1 SC 01204051/01204052 April 2005
John Clarke; Kit(s): Jaycar KC5410
MIDI Theremin, Pt II SC 01204051/01204052 May 2005
John Clarke; Kit(s): Jaycar KC5410
Build A MIDI Drum Kit SC 01211051/01211052/01211053, EPE 653/654/657 November 2005
John Clarke
Build A MIDI Drum Kit; Pt.2 SC 01211051/01211052/01211053, EPE 653/654/657 December 2005
John Clarke
Build A MIDI Drum Kit; Pt.3 SC 01211051/01211052/01211053, EPE 653/654/657 January 2006
John Clarke
Build A MIDI Drum Kit; Pt.4 SC 01211051/01211052/01211053, EPE 653/654/657 February 2006
John Clarke
A Passive Direct Injection Box For Musicians May 2006
John Clarke
Direct Injection From A 70V/100V Speaker Line May 2006
Ross Tester
Mini Theremin Mk.2; Pt.1 SC 01207061, EPE 670 July 2006
John Clarke; Notes/errata: December 2006; Kit(s): Jaycar KC5426
Mini Theremin Mk.2; Pt.2 SC 01207061, EPE 670 August 2006
John Clarke; Notes/errata: December 2006; Kit(s): Jaycar KC5426
Versatile 4-Input Mixer With Tone Controls SC 01106071, EPE 704 June 2007
Jim Rowe; Notes/errata: November 2007; Kit(s): Altronics K5353, Jaycar KC5448
PICAXE Plays Music; Kit(s): www.rev-ed.co.uk July 2007
Clive Seager
A PIC-Based Musical Tuning Aid SC 04107081, EPE 756 July 2008
Jim Rowe; Kit(s): Altronics K1124
New, Improved Theremin Mk.2 SC 01203091, EPE 795 March 2009
John Clarke; Notes/errata: April 2009; Kit(s): Jaycar KC5475
The USB MIDI-Mate: A MIDI Interface For PCs SC 23110111 October 2011
Jim Rowe; Notes/errata: June 2012
Build An Electronic Bellbird SC 08112131 December 2013
John Clarke; Kit(s): Altronics K1128
Create Eerie Music With The Opto-Theremin, Pt.1 SC 23108141/23108142 September 2014
John Clarke
Digital Effects Processor For Guitars/Musical Instruments SC 01110131 October 2014
Nicholas Vinen
Passive Direct Injection (DI) Box SC 23111141 October 2014
John Clarke
Create Eerie Music With The Opto-Theremin, Pt.2 SC 23108141/23108142 October 2014
John Clarke
New Spring Reverberation Unit SC 01104171 April 2017
Nicholas Vinen
Want to build a Bass Guitar? Read on . . . November 2017
Kit(s): Pit Bull Guitars (www.pitbullguitars.com)
Keith Walters
Make your own Theremin – then make music! 23112171 January 2018
John Clarke; Kit(s): Jaycar KC5537
Miniature, high performance sound effects module 01107181 August 2018
Tim Blythman & Nicholas Vinen; Kit(s): SC4658
Speech Synthesis using a Raspberry Pi Zero SC 01106191 July 2019
Tim Blythman
"True valve sound" Guitar Overdrive & Distortion Pedal SC 01102201 March 2020
John Clarke; Kit(s): Altronics kit delayed
Electronic Wind Chimes SC 23011201 February 2021
John Clarke
Electronic Wind Chimes - Part 2 23011201 March 2021
John Clarke
Digital FX (Effects) Pedal - Part 1 SC 01102212 April 2021
John Clarke
Arduino-based MIDI Soundboard - Part 1 SC 23101211/2 April 2021
Tim Blythman
Digital FX (Effects) Pedal – Part 2 SC 01102212 May 2021
John Clarke
Arduino-based MIDI Soundboard – Part 2 SC 23101211/2 May 2021
Tim Blythman
Simple Linear MIDI Keyboard SC 23101213 August 2021
Tim Blythman
Two Classic LED Metronomes SC 23111211/2 January 2022
Randy Keenan
Spectral Sound MIDI Synthesiser SC 01106221 June 2022
Jeremy Leach; Kit(s): SC6261
The Styloclone SC 23106241-2 August 2024
Phil Prosser
Electric Guitar Pickguards SC 23109241-4 September 2024
Brandon Speedie
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24 MICROCONTROLLER ACCESSORIES & COMPUTER PERIPHERALS
The M.A.L. 4.03 Microcontroller Board; Pt.1 November 1992
Kit(s): Electronic System Designs
Barry Rozema
The M.A.L. 4.03 Microcontroller Board; Pt.2 December 1992
Kit(s): Electronic System Designs
Barry Rozema
The M.A.L. 4.03 Microcontroller Board; Pt.3 February 1993
Kit(s): Electronic System Designs
Barry Rozema
Build The MiniVox Voice Operated Relay SC 06109941 September 1994
Darren Yates; Notes/errata: December 1996
Kit(s): Altronics K5544, DSE, Jaycar KC5172
Getting Going With BASIC Stamp SC 11301991 January 1999
Ross Tester & Bob Nicol; Kit(s): DSE, MicroZed
Simple DIY PIC Programmer; Kit(s): Oatley Electronics March 1999
Michael Covington & Ross Tester
PIC Programmer & TestBed SC 07101011 January 2001
Barry Hubble & Peter Smith; Notes/errata: March 2001, November 2006
Kit(s): DSE K3603
Parallel Port PIC Programmer & Checkerboard LDDPP1 March 2001
David Deer; Notes/errata: April 2001, July 2001, Update July 2003
Kit(s): Jaycar KC5307
Programming Adapter For Atmel Microcontrollers SC 07110011 October 2001
Peter Smith; Notes/errata: December 2001, October 2002
Build An AVR ISP Serial Programmer SC 07110021 October 2002
Stephen Davies & Peter Smith; Notes/errata: April 2003; Kit(s): Jaycar KC5340
A Windows-Based EPROM Programmer SC 07112021 November 2002
Jim Rowe; Notes/errata: Upgrade June 2004; Kit(s): DSE K3605 (no longer available)
A Windows-Based EPROM Programmer; Pt.2 SC 07112021 December 2002
Jim Rowe; Notes/errata: Upgrade June 2004; Kit(s): DSE K3605 (no longer available)
Reader/Programmer For Smart Cards SC 07201031 January 2003
David Freeman; Notes/errata: February 2003, March 2003; Kit(s): Jaycar KC5342
A Windows-Based EPROM Programmer; Pt.3 SC 07112021 February 2003
Jim Rowe; Notes/errata: Upgrade June 2004; Kit(s): DSE K3605 (no longer available)
The PICAXE: Pt.2: A Shop Door Minder March 2003
Stan Swan
Three Do-It-Yourself PIC Programmer Kits April 2003
Kit(s): Ozitronics/DIY Electronics K81, K149, K160
Jim Rowe
The PICAXE, Pt.3: Heartbeat Simulator April 2003
Stan Swan
The PICAXE, Pt.4: Motor Controller May 2003
Kit(s): Oatley Electronics (www.oatleyelectronics.com)
Stan Swan
The PICAXE, Pt.5: A Chookhouse Door Controller June 2003
Stan Swan
PICAXE-08 Port Expansion June 2003
David Lincoln
Smart Card Reader & Programmer SC 07107031, EPE 567 July 2003
Peter Smith; Notes/errata: September 2006; Kit(s): Jaycar KC5361
The PICAXE, Pt.6: Data Communications July 2003
Stan Swan
Updating The PIC Programmer & Checkerboard July 2003
Peter Smith; Notes/errata: Refer project March 2001 & December 2005
The PICAXE, Pt.7: Get That Clever Code Purring August 2003
Stan Swan
Portable PIC Programmer SC 07109031 September 2003
Peter Smith; Notes/errata: July 2005, February 2006
Kit(s): Altronics K9505, DSE K3610, Jaycar KC5367
The PICAXE, Pt.8: A Datalogger & Sending It To Sleep September 2003
Stan Swan
Smart Radio Modem For Microcontrollers SC 06111031 November 2003
Nenad Stojadinovic; Kit(s): Altronics K9000
The PICAXE, Pt.8: The 18X Series November 2003
Stan Swan
The PICAXE, Pt.9: Keyboards 101 December 2003
Stan Swan
PC/PICAXE Interface For UHF Remote Control April 2004
John Holliday; Notes/errata: Refer project June 2003
PICAXE The Red-Nosed Reindeer; Kit(s): picaxe.co.uk & microzed.com.au September 2004
Clive Seager
USB-Controlled Power Switch SC 10111041 November 2004
Jim Rowe; Notes/errata: December 2004; Kit(s): Jaycar KC5401
Picaxe Infrared Remote Control; Kit(s): picaxe.co.uk & microzed.com.au November 2004
Clive Seager
A Cheap UV EPROM Eraser March 2005
Barry Hubble
Sending Picaxe Data Over 477MHz UHF CB March 2005
Stan Swan
PICAXE Colour Recognition System June 2005
Clive Seager
Serial LCD Driver; Kit(s): Oatley Electronics K221 August 2005
Graeme Matthewson; Notes/errata: September 2005
Serial I/O Controller & Analog Sampler SC 07111051, EPE 652 November 2005
Trent Jackson; Notes/errata: December 2005, January 2006; Kit(s): DSE K3090
433MHz Wireless Data Communication December 2005
Stan Swan
PIC In-Circuit Programming Add-On Adaptor SC 07112051, EPE 665 December 2005
Keith Anderson
PICAXE-Based 433MHz Wireless Thermometer; Kit(s): Clinch Electronic Systems January 2006
Stan Swan; Notes/errata: April 2006
PICAXE-Powered Thermostat & Temperature Display February 2006
Kit(s): Clinch Electronic Systems
Michael Jeffery; Notes/errata: April 2006
AVR ISP SocketBoard SC 07103061, EPE 649 March 2006
Peter Smith; Notes/errata: Refer projects October 2001 and October 2002
Kit(s): Jaycar KC5421
PICAXE Goes Wireless; Kit(s): AXE210 April 2006
Clive Seager
PICAXE Goes Wireless, Pt.2; Kit(s): AXE210 May 2006
Clive Seager
PICAXE Net Server, Pt.1; Kit(s): microzed.com.au September 2006
Clive Seager
PICAXE Net Server, Pt.2; Kit(s): microzed.com.au October 2006
Clive Seager
PICAXE Net Server, Pt.3; Kit(s): microzed.com.au November 2006
Clive Seager
PICAXE Net Server, Pt.4; Kit(s): microzed.com.au December 2006
Clive Seager
Bike Computer To Digital Ammeter Conversion February 2007
Stan Swan
Dual PICAXE Infrared Data Communication April 2007
Stan Swan
Fun With The New PICAXE 14-M June 2007
Stan Swan
PICAXE Plays Music; Kit(s): www.rev-ed.co.uk July 2007
Clive Seager
PIC Programmer SOIC Converter SC 04211071, EPE 723 November 2007
John Clarke
A Low-Cost PC-to-I²C Interface For Debugging SC 04203081, EPE 744 March 2008
Jim Rowe
Low-Cost dsPIC/PIC Programmer SC 07105081/07105082, EPE 754/755 May 2008
Mauro Grassi; Notes/errata: June 2008, December 2011; Kit(s): Jaycar KC5467
Microcontrollers Can Be A Snap; Kit(s): Kitset March 2009
Stan Swan
PICAXE Humidity Measuring Using The HopeRF HH10D June 2009
Wayne Geary & Stan Swan
A Universal I/O Board With USB Interface October 2009
Kit(s): www.interestingbytes.wordpress.com
Dr Pj Radcliffe
Arduino-Compatible I/O Controller; Kit(s): Ocean Controls KTA-223 April 2010
Greg Radion and Ross Tester
An Intelligent 12V Fan Controller SC 18107101, EPE 857 July 2010
Geoff Graham; Kit(s): Altronics K6120
PICAXE Project Development System; Kit(s): Oatley K277 July 2010
Jeff Monegal
USB Stereo Recording & Playback Interface SC 07106111 June 2011
Jim Rowe; Notes/errata: July 2011
A Handy USB Breakout Box For Project Development SC 04106111 June 2011
Jim Rowe
The USB MIDI-Mate: A MIDI Interface For PCs SC 23110111 October 2011
Jim Rowe; Notes/errata: June 2012
Dorji 433MHz Wireless Data Modules January 2012
Stan Swan
PIC/AVR Programming Adaptor Board; Pt.1 SC 24105121 May 2012
Nicholas VInen; Notes/errata: November 2012
PIC/AVR Programming Adaptor Board; Pt.2 SC 24105121 June 2012
Nicholas Vinen; Notes/errata: November 2012
USB Test Instrument Interface For PCs SC 24109121/24109122 September 2012
Jim Rowe
USB Power Monitor SC 04109121 December 2012
Nicholas Vinen; Kit(s): Jaycar KC5516
Control Relays Via The Internet With Arduino March 2013
John Boxall
DIY Wireless Audio Streaming July 2013
Nicholas Vinen
Build A USB Port Voltage Checker SC 24107131 July 2013
Nicholas Vinen; Kit(s): Jaycar KC5522
SiDRADIO: An Integrated SDR Using A DVB-T Dongle, Pt.1 October 2013
SC 06109131/06109132/06109133
Jim Rowe
The Micromite: An Easily Programmed Microcontroller, Pt.2 June 2014
Geoff Graham
Micromite, Pt.3: Build An ASCII Video Display Terminal SC 24107141 July 2014
Geoff Graham
The 44-pin Micromite Module SC 24108141 August 2014
Geoff Graham
A WiFi Server For $5 December 2014
Geoff Graham
CGA-To-VGA Video Converter 21-01101-01 February 2015
Ewan Wordsworth ; Kit(s): Microbee Technology (www.microbeetechnology.com.au)
WeatherDuino Pro2 Wireless Weather Station, Pt.1 March 2015
A. Caneira & Trevor Robinson
A Touch-Sensitive Shield For The Arduino March 2015
Kit(s): Ocean Controls (SKU KTA298 + SKU SFA007)
Brandon Speedie & Ross Tester
WeatherDuino Pro2 Wireless Weather Station, Pt.2 April 2015
Armindo Caneira & Trevor Robinson
WeatherDuino Pro2 Wireless Weather Station, Pt.3 May 2015
Armindo Caneira & Trevor Robinson
An Arduino-Based USB Electrocardiogram 07108151 October 2015
Jim Rowe; Kit(s): Altronics K2523
A Cheap Programmer For The PIC32 Microcontroller November 2015
Robert Rozée, M.E. (EEE)
Arduino-Based Fridge Monitor & Data Logger December 2015
Somnath Bera
Micromite Plus Explore 100 With Touchscreen, Pt.1 SC 07109161 September 2016
Geoff Graham; Kit(s): www.rictech.nz/micromite-products
El Cheapo Modules From Asia - Part 2 December 2016
Jim Rowe
Programming the ATtiny85 With An Arduino January 2017
Lawrence Billson
El Cheapo Modules From Asia - Part 3 January 2017
Jim Rowe
El Cheapo Modules from Asia - Part 4 February 2017
Jim Rowe
El Cheapo Modules, Part 5: LCD module with I²C March 2017
Jim Rowe
The Microbridge: universal PIC32 programmer plus! SC 24104171 May 2017
Geoff Graham; Kit(s): SILICON CHIP
El Cheapo Modules, Part 7: LED Matrix displays June 2017
Jim Rowe
We put the VS1053 Arduino shield to work; Kit(s): SC4315 July 2017
Bao Smith
The Arduino MegaBox from Altronics; Kit(s): Altronics K9670 December 2017
Bao Smith
Arduino LC Meter Shield Kit; Kit(s): Altronics K9705 January 2018
Bao Smith
High Power DC Fan Controller has loads of applications 05111171 January 2018
Nicholas Vinen
The Arduino Mega Box Music Player revisited February 2018
Kit(s): Altronics K9670 (Mega Box)
Bao Smith
USB Port Protector – just in case! SC 07105181 May 2018
Nicholas Vinen; Kit(s): SC4574
Raspberry Pi Tide Chart SC 24108181 July 2018
Tim Blythman
Turn any PC into a media centre – with remote control! August 2018
Tim Blythman
Arduino-based programmer for DCC Decoders 09107181 October 2018
Tim Blythman
USB digital and SPI interface board SC 16107182 November 2018
Tim Blythman; Kit(s): SC4750
ATtiny816 Breakout and Development Board with capacitive touch SC 24110181 January 2019
Tim Blythman
Zero Risk Serial Link SC 24107181 January 2019
Tim Blythman
USB Mouse and Keyboard Interface for Micros SC 24311181 February 2019
Tim Blythman
iCEstick VGA Terminal SC 02103191 April 2019
Tim Blythman; Kit(s): Mouser 842-ICE40HX1KSTICKEV; Digi-Key 220-2656-ND
Low-cost 3.5-inch LCDs for Arduino or Micromite SC 24111181 May 2019
Tim Blythman
A new Micromite: the sensational Explore-28 SC 07108191 September 2019
Geoff Graham; Kit(s): SC5121 or www.rictech.nz
Ultrabrite LED Bicycle Light SC 16109191 September 2019
Daniel Doyle
Altronics New MegaBox V2 Arduino prototyping system; Kit(s): K9670A December 2019
Tim Blythman
D1 Mini LCD BackPack with WiFi SC 24106201 October 2020
Tim Blythman; Kit(s): SC5503
Mini Isolated Serial Link 24102211 March 2021
Tim Blythman
PIC Programming Helper SC 24106211/2 June 2021
Tim Blythman
Micromite to a Smartphone via Bluetooth September 2021
Tom Hartley
USB Cable Tester – Part 1 SC 04108211/2 November 2021
Tim Blythman; Kit(s): SC5966
USB Cable Tester – Part 2 SC 04108211/2 December 2021
Tim Blythman; Kit(s): SC5966
The Raspberry Pi-based PicoMite January 2022
Geoff Graham & Peter Mather
Raspberry Pi Pico BackPack SC 07101221 March 2022
Tim Blythman; Kit(s): SC6075
Arduino Programmable Load SC 04105221 June 2022
Tim Blythman
VGA PicoMite SC 07107221 July 2022
Geoff Graham; Kit(s): SC6417
PIC & AVR Breakout Boards SC 24110222/3/5 October 2022
Tim Blythman
Digital Boost Regulator SC 24110224 December 2022
Tim Blythman; Kit(s): SC6597
Raspberry Pi Pico W BackPack SC 07101221 January 2023
Tim Blythman; Kit(s): SC6625
PIC Programming Adaptor SC 24105231 September 2023
Nicholas Vinen
TQFP Programming Adaptors SC 24108231-4 October 2023
Nicholas Vinen
USB to PS/2 Keyboard Adaptors SC 07111231/2 January 2024
Tim Blythman
Symbol USB Keyboard May 2024
Tim Blythman
USB-C Serial Adaptor SC 24106241 June 2024
Tim Blythman
----------------------------------------------------------------------------------------------
25 MEDICAL AND HEALTH/HUMAN AND ANIMAL
Build The Woofer Stopper SC 03105931 May 1993
Darren Yates; Notes/errata: June 1993
Remote Control For The Woofer Stopper SC 03105932 June 1993
Darren Yates; Kit(s): Oatley Electronics
Woofer Stopper Mk 2 - Now It's Even Better! SC 03102961 February 1996
John Clarke; Notes/errata: December 1996; Kit(s): DSE, Jaycar
Build A TENS Unit For Pain Relief SC 04307971 August 1997
John Clarke; Kit(s): DSE K3702 - discontinued
PC-Controlled Stress-O-Meter SC 07111981 October 1998
Rick Walters
Build A Carbon Monoxide Alarm SC 05303991 May 1999
John Clarke
Build The Dog Silencer; Kit(s): Oatley Electronics (discontinued) July 1999
Branco Justic
Booze Buster Breath Tester; Kit(s): Oatley Electronics October 2000
Ross Tester
The HeartMate Heart Rate Monitor SC 04107011/04107012 July 2001
John Clarke; Kit(s): Altronics K8050
Personal Noise Source For Tinnitus Sufferers SC 01109011 September 2001
John Clarke; Kit(s): Altronics, DSE, Jaycar KC5319
Shut That Mutt; Kit(s): Oatley Electronics K112a April 2004
Branko Justic; Notes/errata: July 2004
Bed Wetting Alert Sounder For Toddlers SC 15109041/15109042 September 2004
John Clarke; Kit(s): Jaycar KC5396
Build A USB-Controlled Electrocardiograph SC 07102051, EPE 643 February 2005
Jim Rowe; Kit(s): DSE K3704
Carbon Monoxide Alert SC 05108051 August 2005
John Clarke; Notes/errata: September 2005; Kit(s): K4614
Simple Alcohol Level Meter October 2005
John Clarke; Notes/errata: November 2005
Pocket TENS Unit For Pain Relief SC 11101061 January 2006
John Clarke; Kit(s): DSE K3705
Aquarium Temperature Alarm; Kit(s): SC 03109061 September 2006
Peter Smith
A Heartbeat CPR Training Beeper SC 04112061 December 2006
Jim Rowe & Ross Tester
Test The Salt Content Of Your Swimming Pool December 2008
Leo Simpson
Air-Quality Meter For Checking CO & CO₂ Levels SC 04306101, EPE 834 June 2010
John Clarke
Cranial Electrical Stimulation Unit SC 99101111 January 2011
Robert Scott
Barking Dog Blaster: Shut That Annoying Mutt Up! SC 25108121 September 2012
John Clarke; Notes/errata: December 2012, January 2013
Kit(s): Altronics K4500 (discontinued)
Wireless Remote Control For The Barking Dog Blaster related: SC 25108121 October 2012
Ross Tester; Kit(s): related: Altronics K4500 (discontinued)
Infrasound Detector For Low Frequency Measurements March 2013
Kit(s): Champ and Pre-champ available from Jaycar & Altronics
Allan Linton-Smith & Ross Tester
Alscolyser: For Accurate Alcohol Analysis November 2013
Allan Linton-Smith
An Arduino-Based USB Electrocardiogram 07108151 October 2015
Jim Rowe; Kit(s): Altronics K2523
Lure & Liquidate Lovelorn Zika Virus Mozzies SC 25110161 October 2016
John Clarke; Kit(s): Altronics K1134
Brainwave Monitor – see what’s happening in your brain 25108181 August 2018
Jim Rowe
Insomnia and Tinnitus killer SC 01110181/2 November 2018
John Clarke; Kit(s): SC4792
MiniHeart: A Miniature Heartbeat Simulator 01109201 January 2021
John Clarke
----------------------------------------------------------------------------------------------
26 SCIENTIFIC/EDUCATIONAL
Build A Basic Logic Trainer; Kit(s): DSE K3010 exclusive February 1996
Rex Callaghan
Demonstration Board For Liquid Crystal Displays SC 04102981 February 1998
Rick Walters
Protoboards: The Easy Way Into Electronics, Pt.1 September 2000
Leo Simpson
Protoboards: The Easy Way Into Electronics, Pt.2 October 2000
Leo Simpson
Protoboards: The Easy Way Into Electronics, Pt.3 November 2000
Leo Simpson
Protoboards: The Easy Way Into Electronics, Pt.4 December 2000
Leo Simpson
Protoboards: More Fun With Comparators March 2001
Leo Simpson
The Sooper Snooper; Kit(s): Oatley Electronics September 2001
Ross Tester; Notes/errata: June 2002
Build Your Own Seismograph SC 04105091, EPE 636 September 2005
Dave Dobeson
An Ultrasonic Eavesdropper SC 01208061, EPE 683 August 2006
Jim Rowe; Notes/errata: October 2006
Planet Jupiter Receiver SC 06108081, EPE 771 August 2008
Jim Rowe; Kit(s): Altronics K1127 (discontinued)
Build A Simple Seismograph On A Protoboard September 2009
Stan Swan
Build A Magnetic Stirrer SC 18112111 December 2011
Michael Burton
Demonstration Circuits For Human Colour Vision July 2013
James Goding; Notes/errata: August 2013
YOU can anodise aluminium at home! May 2020
Phil Prosser
Solid-State Tesla Coil SC 26102221-2 February 2022
Flavio Spedalieri
----------------------------------------------------------------------------------------------
27 LOGGING/SENSING/REMOTE MONITORING
Minilog: An 8-Bit Single-Channel Data Logger; Kit(s): MicroZed Computers July 1996
Anthony Mott
Simple I/O Card With Automatic Data Logging; Kit(s): Softmark August 1998
Mark Roberts
3-Channel Current Monitor With Data Logging; Kit(s): Parts from Softmark March 1999
Mark Roberts
Build A Temperature Logger; Kit(s): Softmark April 2000
Mark Roberts
Telephone Call Logger K164 December 2001
Frank Crivelli & Peter Crowcroft; Kit(s): Ozitronics
The PICAXE, Pt.8: A Datalogger & Sending It To Sleep September 2003
Stan Swan
PICAXE-18X 4-Channel Datalogger January 2004
Clive Seager; Notes/errata: August 2004
PICAXE-18X 4-Channel Datalogger; Pt.2 February 2004
Clive Seager; Notes/errata: August 2004
PICAXE-18X 4-Channel Datalogger; Pt.3 March 2004
Clive Seager; Notes/errata: August 2004
Simple Data-Logging Weather Station, Pt.1 SC 04109071/04109072, EPE 718-719 September 2007
Glenn Pure; Notes/errata: November 2007
Simple Data-Logging Weather Station; Pt.2 SC 04109071/04109072, EPE 718-719 October 2007
Glenn Pure; Notes/errata: November 2007
Precision Temperature Logger & Controller, Pt.1 SC 10101101 January 2010
Leonid Lerner
Precision Temperature Logger & Controller, Pt.2 SC 10101101 February 2010
Leonid Lerner
Digital/Analog USB Data Logger SC 04112101 December 2010
Mauro Grassi; Notes/errata: January, Februrary, April & May 2011, January 2012
Kit(s): Altronics K2572
Digital/Analog USB Data Logger, Pt.2 SC 04112101 January 2011
Mauro Grassi; Notes/errata: January, Februrary, April & May 2011, January 2012
Kit(s): Altronics K2572
Digital/Analog USB Data Logger, Pt.3 SC 04112101 February 2011
Mauro Grassi; Notes/errata: January, Februrary, April & May 2011, January 2012
Kit(s): Altronics K2572
Build A GPS Tracker & Record Your Journeys SC 05112131 November 2013
Geoff Graham; Kit(s): Jaycar KC5525
Arduino-Based Fridge Monitor & Data Logger December 2015
Somnath Bera
An Arduino Data Logger with GPS SC 21107171 August 2017
Nicholas Vinen
Arduino Data Logger Part 2 SC 21107171 September 2017
Nicholas Vinen
Arduino “ThingSpeak.com” ESP8266 data logger September 2017
Bera Somnath
Touchscreen Altimeter and Weather station December 2017
Jim Rowe
A Water Tank Level Meter with WiFi and More! SC 21110171 February 2018
Nicholas Vinen
Multi-use Frequency Switch SC 05104181 May 2018
John Clarke
Motion-sensing 12V Power Switch SC 05102191 February 2019
Nicholas Vinen; Kit(s): SC4851
Remote monitoring station messages or emails by 4G! SC 27111191 February 2020
Tim Blythman
Busy Loo Indicator 16112201 January 2021
John Chappell
----------------------------------------------------------------------------------------------
28 3D PRINTING/CNC
3D Printer Filament Dryer, Part 1 SC 28110241 October 2024
Phil Prosser
3D Printer Filament Dryer, Part 2 SC 28110241 November 2024
Phil Prosser
----------------------------------------------------------------------------------------------
29 SOLDERING/TOOLS
A Portable Electronics Workbench November 1987
Leo Simpson
Temperature Controlled Soldering Station CE/94 October 1994
Jeff Monegal; Kit(s): CTOAN Electronics (no longer available)
A DIY Reflow Oven Controller for modern soldering SC 01106193/4/5 April 2020
Phil Prosser
A DIY Reflow Oven Controller – Part 2 SC 01106193/4/5 May 2020
Phil Prosser
SMD Trainer Board SC 29106211 December 2021
Tim Blythman; Kit(s): Altronics K2001
Capacitor Discharge Welder, part one SC 29103221-3 March 2022
Phil Prosser; Kit(s): SC6224 & SC6225
Capacitor Discharge Welder, Pt2 SC 29103221/2/3 April 2022
Phil Prosser; Kit(s): SC6224, SC6225
----------------------------------------------------------------------------------------------
30 AERONAUTICS/AIRCRAFT/SATELLITES/SPACE
Glowplug Driver For Powered Models; Kit(s): Oatley Electronics March 2000
Ross Tester
----------------------------------------------------------------------------------------------
99 MISCELLANEOUS
Build Your Own Light Box March 1988
Leo Simpson
Map Reader For Trip Calculations SC 08103891 March 1989
Malcolm Young & Leo Simpson
Build A Large Ultrasonic Cleaner SC 04208101, EPE 862 August 2010
John Clarke; Notes/errata: December 2010; Kit(s): Altronics K6021 Jaycar KC5499
Build A Magnetic Stirrer SC 18112111 December 2011
Michael Burton
Threshold Voltage Switch SC 99106141 July 2014
John Clarke; Kit(s): Jaycar KC5528, Altronics K4005 (discontinued)
----------------------------------------------------------------------------------------------
** CIRCUIT NOTEBOOK
DC speed control for model motors November 1987
Silicon Chip
Measuring the tracking of dual potentiometers November 1987
Silicon Chip
Obtain -5V from a +5V supply November 1987
Silicon Chip
Frequency comparator with visual display November 1987
Silicon Chip
Handy hints and tips November 1987
Silicon Chip
Transistor oscillator December 1987
Silicon Chip
Low power RAM EPROM emulator December 1987
Silicon Chip
Handy hints and tips December 1987
Silicon Chip
Courtesy light delay switch December 1987
Silicon Chip
Voltage regulator for 12V alternators December 1987
Silicon Chip
High impedance op amp with input protection January 1988
Phil Denniss
Sequential lamp flasher for your car January 1988
Silicon Chip
Substituting electros January 1988
Silicon Chip
Crowbar over-voltage protection for power supplies January 1988
Silicon Chip
Thermatic fan timer for cars February 1988
David Duffy
Dynamic noise reduction for cassette players February 1988
Silicon Chip
Handy hints and tips February 1988
Silicon Chip
El cheapo car burglar alarm February 1988
Silicon Chip
Higher power car stereo conversion February 1988
Silicon Chip; Notes/errata: Ref Car Stereo For Your Home, November 1987
Bridging 100W amplifier modules February 1988
Silicon Chip; See also EA June 1985
Adjustable load for power supplies March 1988
Silicon Chip
Updated synchroscope for frequency comparison March 1988
Steve Payor
Handy Hints March 1988
Silicon Chip
Precision reset for microprocessors March 1988
Silicon Chip
CRO probe modification March 1988
Silicon Chip
How to dim fluorescent lights March 1988
Silicon Chip
High speed pulse amplifier April 1988
Phil Denniss
Headphone noise monitor for power amplifiers April 1988
Silicon Chip
VU meter for tape dubbing April 1988
J. Emery
Handy Hints April 1988
Silicon Chip
Quiz game using a CMOS latch April 1988
Dave Duffy
How to stretch pulse widths April 1988
Silicon Chip
Voltage and current metering for power supplies May 1988
N. Jackson
Handy Hints May 1988
N. Jackson
High-Q notch filter uses small capacitors May 1988
Silicon Chip
Improvements to end-of-file indicator May 1988
Michael Dobbins
Flashing pilot lamp June 1988
Steve Payor
Brighter flashing bump for burglar alarms June 1988
Silicon Chip
Dual power circuit has backup battery indication June 1988
Ian Davies
DC stereo volume control August 1988
National Semiconductor Literature
Telephone ring simulator August 1988
R. J. Martindale
Digital Lissajous frequency comparator August 1988
Steve Payor
National Semiconductor's LM12 150 watt op amp September 1988
Silicon Chip
Audio overload detector October 1988
Silicon Chip
Off peak indicator for hot water systems October 1988
Silicon Chip
Long interval timer October 1988
Silicon Chip
Video distribution system has ghosts on one channel October 1988
Silicon Chip
Self-oscillating detectors are intriguing October 1988
Silicon Chip
Knightrider LED Scanner SC 08111881 November 1988
Silicon Chip; Kit(s): Jaycar
12-240V 60VA Inverter SC 08111881 November 1988
Silicon Chip; Kit(s): Jaycar
Volume control for power amplifier November 1988
M. A.
Microphone preamp circuit November 1988
Silicon Chip
Charger for 12V gel batteries December 1988
Silicon Chip
Constant current nicad charger December 1988
Silicon Chip
Pulse charger for dry cells January 1989
Darren Yates
200-250mA DC electronic fuse January 1989
Peter King
RS232 to RS422 adaptor January 1989
C. Boardman
Simple binary encoded keypad February 1989
Silicon Chip
Crystal oscillator using a CMOS 555 February 1989
Steve Payor
Alternative override for car safety light February 1989
Peter van Schaik; Notes/errata: Ref Project November 1988, 20EPC
Tacho connection for high energy ignition February 1989
R. F.
Photo-interrupter for digital counter March 1989
John Whittingham
Schmitt trigger uses discrete transistors March 1989
Malcolm Young
High impedance 1-watt amplifier March 1989
Darren Yates
Wide bandwidth video amplifier March 1989
Silicon Chip
Keyboard sound improver April 1989
Darren Yates
Keypad alarm for car security April 1989
Darryl Lewis
Relay output for Door Minder April 1989
Silicon Chip; Notes/errata: Ref Project February 1988
Leading zero blanking for digital speedos May 1989
Tim Gregory
Thermostat for cooling fans May 1989
John Whittingham
Bit saver for soldering irons May 1989
Aaron Mihe
Bit saver for soldering irons May 1989
Aaron Milhe
Power supply for "Walkman" radios June 1989
H. Choke
X-Y light source plotter June 1989
Darren Yates
Tone decoder input control circuit July 1989
Peter Howarth
Centre-zero meters in power supplies July 1989
David Allen
Low cost locker alarm July 1989
Paul Daniels
Channel switch for DSE UHF converter August 1989
M. Allen
Flasher unit for cars August 1989
John Pindell
Fuse-fail alarm for cars August 1989
Peter Howarth
Car battery voltage monitor August 1989
J. Emery
Tachometer won't work with high energy ignition August 1989
V. B.
Sawtooth/triangle waveform generator September 1989
M. Young
Digitally-controlled stereo volume control September 1989
Darren Yates
Siren & flash generator for toy cars October 1989
S. Thorley
Balanced outputs from a single supply October 1989
G. Small
Timer for motor driven cameras October 1989
R. Beinke
Walkman car stereo amplifier November 1989
Darren Yates
4-channel mixer with effects send November 1989
Steve Massey
Traffic light system for model railways November 1989
Darren Yates
Exhaust temperature alarm for boats December 1989
Peter King
High current intelligent charger December 1989
Bill Jolly
Self cycle bilge pump control December 1989
Peter King
El-cheapo buffer amplifier December 1989
Steve Payor
Stereo FM microphone transmitter December 1989
Darren Yates
6V version of the brake lamp flasher December 1989
G. W.; Notes/errata: Ref project April 1989
Quiz game has light chasers for extra pizazz January 1990
Daniel Garrard
High and low boost for PA loudspeakers January 1990
Stephen Delft
Clipping indicator for stereo amplifiers January 1990
M. J. A. Hamel
Electronic speedo with LED display February 1990
Steve Calder
Parametric equaliser for flexible tone control February 1990
Darren Yates
Simple transistor beta tester February 1990
Darren Yates
30-second bilge pump February 1990
Peter King
100-sequence LED chaser March 1990
Darren Yates
Pulse width modulated signal compressor March 1990
Darren Yates
Bilge pump with 15s sloshing delay March 1990
Peter King
Pulse width modulated signal expander April 1990
Darren Yates
Low-cost alarm status indicator April 1990
Steve Calder
Single supply instrumentation amplifier April 1990
Phil Denniss
24V gel-cel battery charger May 1990
Silicon Chip; Notes/errata: Ref project March 1990
Delay circuit for intermittent wipers May 1990
Malcolm Young
Adjustable boxing timer May 1990
Steve Calder
2-phase oscillator uses a flipflop May 1990
Darren Yates
Gusty 220V power supply June 1990
Steve Payor
Antenna control in Holden cars June 1990
I. Benet
40W bridged power amplifier June 1990
Darren Yates
Driving stepper motors from a parallel printer port July 1990
Steve Payor
One-chip DC volume control July 1990
Silicon Chip
Switching mains with your computer July 1990
Silicon Chip
Effective in-circuit battery tester August 1990
Herb Steinfeld
Electronic time delay switch August 1990
John Clarke
Overvoltage protection for power supplies August 1990
John Clarke
Remote control for early Rank Arena TVs August 1990
Ron Young
Low cost battery minder September 1990
Bill Jolly
2.4GHz prescale for 1GHz frequency meter September 1990
Chris Skeer; see Project November 1987-January 1988
Traffic lights for model railways September 1990
Robert Parnell
1Hz timebase with variable pulse width September 1990
R. J. Hose
Electronics control for radiator fan September 1990
John Clarke
Expanded scale 11.6-12.6V voltmeter October 1990
Peter King
Low-cost mains frequency indicator October 1990
Bob Rochfort
Digital staircase waveform generator October 1990
Darren Yates
Obtaining a -5V from a +5V supply October 1990
John Clarke
Single chip low battery alarm November 1990
Peter King
Low frequency sample & hold circuit November 1990
Phil Denniss
FM stereo test tone transmitter November 1990
Greg Freeman
Climate controller for a greenhouse December 1990
Roy Raines
Current limiter for 240VAC lamps December 1990
David Eather
Constant volume amplifier January 1991
C. Wallis, VK2DQE
Diode test adaptor for multimeters January 1991
David Eather
Claytons alarms with no IC drivers January 1991
K. Young
Precision timer goes to 46.6 hours January 1991
Bill Jolly
Wide range inductance meter February 1991
Victor Erdstein
Coolant level alarm for cars February 1991
Glen Host
Mid-frequency tone control February 1991
Electronics World & Wireless World (October 1990)
Audio filter for HF receivers March 1991
Electronics & Wireless World
3MHz digital frequency counter March 1991
Bill Jolly
IBM keyboard extension cable March 1991
Colin Stewart
Direct coupled sniffer probe March 1991
Greg Freeman
Simple metal detector March 1991
Darren Yates
300Hz-3kHz audio filter April 1991
Darren Yates
Bare-bones dual power supply April 1991
Darren Yates
Simple IR detector checks remote controls April 1991
Bill George
Lightning distance meter May 1991
Darren Yates
Toy car motor controller May 1991
D. Nicholls
Discharger for nicad battery packs June 1991
J. Novak
5V switchmode power supply June 1991
Steve Garland
Shunt controller for solar panels June 1991
Peter King
Analog data logging via a PC's parallel port July 1991
P. Junor
3-team quiz adjudicator July 1991
Darren Yates
Resistor calculations on a Commodore 64 July 1991
A. Williamson
Leading zero suppressio for the capacitance meter August 1991
G. Freeman
Low distortion sinewave oscillator August 1991
Darren Yates
Automatic controller for sullage pumps August 1991
Glen Host
Soft start for 240V lamps September 1991
G. Freeman
Voltage regulator for alarm backup battery September 1991
B. Adams
Simple nicad chager with 16-hour timer September 1991
B. Dumuid
How to dim fluorescent lights September 1991
W. A.
DC offset canceller for amplifiers October 1991
P. Denniss
Dual tracking power supply uses cheap parts October 1991
Steven Merrifield
Battery charging for garage door controller October 1991
P. Hunter; Notes/errata: Ref Project March/April 1991
Three-way quiz game uses relays & diodes November 1991
F. Kemsley
Low-cost variable power supply November 1991
R. Parnell
Power supply for portable valve radios November 1991
G. J. Sones
Speed sensitive direction switch November 1991
Graham Palmer
Expandable 3-way quiz game December 1991
Steven Merrifield
Budget burglar alarm system December 1991
Cameron Fraser
Power supply for flash gun December 1991
Darren Yates
0-11V voltmeter has LED indicators December 1991
Paul Fitzgerald
Signalling for model trains January 1992
Brian Boogs
Automatic night light timing circuit January 1992
Arthur Hand
Alarm dialler uses an EPROM February 1992
Greig Sheridan
8-channel ADC for PCs February 1992
P. Williamson
Courtesy light delay for cars March 1992
G. Host
Converting the pattern generator for NTSC March 1992
John Clarke
Breakout board for games port March 1992
Bob Barnes
Traffic lights for model train layouts March 1992
Mats Nilsson
Adjustable 20V power supply March 1992
Steve Jenkins
Using your games port for data input March 1992
S. J. Merrifield
Electronic ignition & positive chassis vehicles March 1992
P. W.
Scanning facility for a CB radio April 1992
Steven Merrifield
EPROM-based stepper motor driver April 1992
Marque Crozman
Bulletin board watchdog May 1992
Greig Sheridan
Low cost audio oscillator May 1992
Steven Merrifield
Nicad fast charger timer May 1992
Paul Fitzgerald
Airconditioning override with kickdown switch May 1992
Peter Bradstock
Courtesy & headlight delays for cars June 1992
S. Lamble
Loudspeaker protector has power-on delay June 1992
Don Paton
Chocolate wheel with fixable numbers June 1992
Grant Schultz
Sequential combination lock July 1992
Sheldon Munoz
Modification to headlight controller July 1992
Garry Fowler
BCD & decimal to 7-segment decoding with an EPROM July 1992
Nick Kounelis
Musical chime generator August 1992
Steven Merrifield
12V DC to 240V AC inverter for small appliances August 1992
T. Van der Burg
Simple lap timer for slot cars August 1992
Greg Armstrong
High performance drill speed controller August 1992
Geoff Monegal
Automatic electric blanket controller September 1992
R. Rochfort
Traffic lights for model train layouts September 1992
Darren Yates
Tester for 2-input logic gates September 1992
Sheldon Munoz
Cross-coupled FET mixer September 1992
J. Rickard
Automatic soldering iron timer October 1992
Steven Merrifield
Stutter trigger for an audio strobe October 1992
G. Sheridan
Self-contained autofire module for electronic games October 1992
G. Cattley
A low cost crystal checker November 1992
P. Parke VK6BWI
Reversing light chaser for 12V lamps November 1992
M. Schmidt
Timer safeguards rechargeable cells November 1992
G. Wormaid
2-chip electronic blackjack game November 1992
G. Taylor
Board game countdown timer December 1992
S. Merrifield
Power on/low battery indicator December 1992
A. Lazzard
High-current 0-20V power supply December 1992
H. Nacinovich
LED VU scanner display January 1993
S. Goebel
Cable tester with LED indicators January 1993
D. Gardner
Simple tester for IR remote controls January 1993
Tim Gregory
Parking lights reminder January 1993
Darren Yates
Horn blower for mobile telephones February 1993
Glen Host
Square wave frequency doubler February 1993
Darren Yates
Robotics interface for PCs February 1993
P. Dumuid
Simple way to make PC boards February 1993
Glen Andersson
Blown fuse indicator March 1993
Steve Payor
A 20-metre direct conversion receiver March 1993
S. Merrifield
Simple 2-input logic gate indentifier March 1993
D. Klimovski & A. Cricenti
Breakerless pick-up for car ignition April 1993
Glen Host
Dynamic noise reduction circuit April 1993
D. Young
VFO controlled transmitter for 80 metres April 1993
John Rickard
Interface for the LCD panel meter May 1993
Phil Angilley; see Project September 1992
Seven day hose controller May 1993
John Holliday
Battery monitor for solar chargers June 1993
Darren Yates
Refinement for the interphone exchange June 1993
B. H. Goulburn
Add-on circuit for a sidereal clock June 1993
J. Priestley
Discrete step-down voltage converter June 1993
Darren Yates
Repeater time-out indicator June 1993
Bob Beveridge, VK2JZ
Battery charge status monitor July 1993
Douglas Ritson
Single-chip combination lock July 1993
Steven Merrifield
Low-cost piezo screamer siren July 1993
Andrew Merrick
Pulser probe for TTL & CMOS July 1993
Greg Freeman
Increasing the output of a 3-terminal regulator July 1993
L. B.
Low-cost isolation amplifier August 1993
John Clarke
Low distortion oscillator August 1993
John Clarke
Handy hint August 1993
R. Barham
Phase adapter for digital multimeters August 1993
Steven Merrifield
AND or OR gates with diodes August 1993
B. S. ; Notes/errata: Ref Quiz Game Adjudicator, July 1993
Wide range phase control September 1993
K. J. Benic
Regulator for solar panels September 1993
Herman Nacinovich
Microcontroller timer September 1993
Silicon Chip
RF-linked IR remote control extender October 1993
C. Angus
Electronic mousetrap catches 'em alive October 1993
P. Gallus
Electronic starter for fluorescent lights October 1993
K. Benic
Low-cost controller for model-trains November 1993
B. McTighe
6/12V gel cell charger November 1993
E. Kochnieff
Flash meter November 1993
V. Erdstein
Power supply pre-regulator circuit November 1993
G. Freeman
240V motor speed control December 1993
H. Nacinovich
Single chip touch switch December 1993
Matthew Inman
Amended pulser probe January 1994
Greg Freeman; see July 1993
Beta measurements with an analog multimeter January 1994
Victor Erdstein
Induction motor speed controller January 1994
G. Host
Single-pot Wien bridge oscillator January 1994
Darren Yates
Digital tachometer & dwell angle meter February 1994
K. Benic
Using two train controllers to operate one section February 1994
Alf McKeon
Replacing selenium cells with solar cells February 1994
V. Erdstein
Resistance & capacitance meter March 1994
A. Chin
Adding latched outputs to the IR train controller March 1994
Alf McKeon; Notes/errata: Ref SC April, May, June 1992
Simple quiz game adjudicator March 1994
E. Hermann
Low power voltage booster March 1994
Jams Moxham
Cockroft-Walton voltage multipliers March 1994
A. E.
Block signalling for model trains April 1994
S. Oppermann
Battery-life indicator for radio microphones April 1994
Glen Host
Simple 4-step voltage comparator April 1994
Darren Yates
Debouncing needed for counter input April 1994
G. F. ; Notes/errata: Ref 3-Digit Counter Module, September 1990
Light meter adapter for a DMM May 1994
Victor Erdstein
Battery voltage indicator for cars May 1994
B. Paynter
Delayed reset for PCs & compatibles May 1994
John Clarke
Six-way decision maker uses two ICs May 1994
S. Tsilomanis
Optical pickup for high energy ignition May 1994
B. K.
Variable constant current load June 1994
K. Kochnieff
RF actuated CW sidetone unit June 1994
Peter Parker
Discrete monostable multivibrator June 1994
Darren Yates
Photographic lightmeter adapter June 1994
Victor Erdstein
Positive to negative DC inverter July 1994
H. Nacinovich
Floating constant current limit July 1994
E. Kochnieff
Analog to digital interface circuit July 1994
Marque Crozman
Tester for IR remote controls July 1994
G. Turner
A sensitive lightmeter for the darkroom August 1994
Victor Erdstein
Theft protection for automatic cars August 1994
Ron Searle
Low-cost LED level display August 1994
L. Trengove
Optoelectronic pickup for ignition systems August 1994
Des Logan; Notes/errata: Ref High Energy Ignition Project, May 1988
Tape equalisation for preamp August 1994
R. C. ; Notes/errata: Ref Universal Preamplifier, April 1994
Timer for security lights September 1994
Silicon Chip
Automotive voltage regulator September 1994
Silicon Chip
Tester for radio control servos September 1994
Manfred Schmidt
Test GPO for workshops October 1994
H. Peter Harle
Flashing battery monitor October 1994
V. Erdstein
Auto-shutoff for battery circuits October 1994
A. Chin
PC Alert - a simple watchdog alarm October 1994
I. Hogan
12-24V circuit tester for cars & trucks November 1994
A. Glover
Display dimmer for LED clocks November 1994
A. Chin
Super bright LED brake light array November 1994
E. Kochnieff; Notes/errata: December 1994
Low cost photo timer November 1994
Gordon Boytell
Rotary encoder decoder December 1994
G. Sheridan
Power supply for subsidiary amplifier December 1994
Silicon Chip
6V to 12V converter December 1994
Silicon Chip; Notes/errata: Ref 12V SLA Battery Charger, July 1992
Simple 1-chip logic probe December 1994
A. Chin
Using a 3-wire railway crossing lights January 1995
Silicon Chip
Level translator for PC games port January 1995
Silicon Chip
Electronic guitar tuning fork January 1995
L. Williams
Analog multiplier uses transconductance amp February 1995
Herman Nacinovich
Thumb wheel selection for pattern generator February 1995
Michael Parany; Notes/errata: Ref SC Nov/Dec 1991
Adjusting pulse-train mark-space ratio March 1995
G. Freeman
Pump control system uses LDT March 1995
W. Jolly
Buzzer for infrared security light March 1995
A. F.
48V charger for SLA batteries April 1995
Silicon Chip
Tachometer pick-up for diesel engines April 1995
John Clarke; Notes/errata: Ref SC August 1991
Temperature controller for home brewers April 1995
Paul Chen
Digital readout for a weighbridge May 1995
Silicon Chip; Notes/errata: Ref Project p78, September 1992
Balanced microphone preamplifier May 1995
Silicon Chip; Notes/errata: Ref Project p38, April 1995
Automatic charger/discharger May 1995
P. Chen
Using a multi-tap transformer May 1995
E. R. ; Notes/errata: August 1995
Expanded scale voltmeter for cars June 1995
Phil McKay
Emergency lighting circuit has charger June 1995
R. Sestoso
Low cost nicad zapper June 1995
Silicon Chip
Dummy printer for testing parallel ports on a PC June 1995
J. Akkad
Stereo signal switcher for testing June 1995
Silicon Chip
Simple probe detects logic levels & pulse trains June 1995
A. Chin
Encoder for surround sound decoders SC 01107951 July 1995
SILICON CHIP
Coolant alarm for positive earth vehicles July 1995
Silicon Chip; Notes/errata: Ref Project June 1994
Relay driver board with high voltage supply August 1995
Silicon Chip
Automatic antenna controller for cars August 1995
D O'Connor
Rev limit indicator for rally cars September 1995
Silicon Chip
Car courtesy light monitor & extender September 1995
D. Harvey
Touch sensitive switch uses a single IC September 1995
Bill Jolly
Speed controller for small motors in models October 1995
Manfred Schmidt
Low-cost stepper motor & controller October 1995
Jeff Allen
Adding tail lamps to guard's vans October 1995
Stephen Ives
Discolight with neon lighting October 1995
G. S. ; Notes/errata: Ref Project July & August 1988
Simple solar tracker November 1995
R. Josey
Weekly rubbish reminder November 1995
Manfred Schmidt
Ignition coil/condenser tester November 1995
Silicon Chip
Multi-way switching for 240VAC lighting November 1995
Silicon Chip
Optical tachometer has digital readout December 1995
Silicon Chip; Notes/errata: Ref SC May 1988 & SC December 1993
Simple LED chaser using transistors December 1995
S. Isreb
Camper van inverter controller December 1995
C. Mooney
Automatic level control for line signals January 1996
Silicon Chip
Bilge pump timer uses a mercury switch January 1996
Silicon Chip
Moisture monitor for pot plants January 1996
B. Avi
PWM speed controller January 1996
M. Schmidt
DC amplifier for a centre-zero meter January 1996
Silicon Chip
Reluctor circuit for high energy ignition February 1996
C. Daly; Notes/errata: Ref SC May 1990
Intercom uses surplus telephones February 1996
A. Hellier
4-channel mixer modifications February 1996
Silicon Chip; Notes/errata: Ref SC January 1992
Charge controller for a transceiver March 1996
L. Toussaint
Model railway level crossing control March 1996
E. Scharenguivel
Binary counting demonstrator March 1996
E. Humprehys
Precision timer uses cheap crystal March 1996
C. O'Donnell
Brake pedal alarm circuit March 1996
P. Howarth
Micropower low-voltage indicator April 1996
M. Schmidt
Body filler depth detector April 1996
Silicon Chip
Single rail operation for the TDA1514 April 1996
E. Ferrier
RS232 modem switcher April 1996
P. Howarth
Reluctor version of programmable ignition May 1996
Silicon Chip; Notes/errata: Ref Project March 1996
Larger search coils for the metal locator May 1996
A. March
Electrolytic PC board etcher May 1996
S. Isreb
0-18V power supply with current limiting May 1996
M. Schmidt
Bridge operation for LM3886 stereo module June 1996
Silicon Chip; Notes/errata: Ref Project February 1995
Stereo preamplifier with selectable gain June 1996
Silicon Chip; Notes/errata: Ref Project April 1994
Novel modulator for signal generators June 1996
L. Williams
Remote control for Dolby decoder June 1996
D. H. ; Notes/errata: Ref Project November & December 1995
Loudspeaker protection June 1996
J. B. ; Notes/errata: Ref ALC Project March 1996
Multi-cell charging with the TEA1100 July 1996
Mark Bishop
Random number generator July 1996
M. Downey
0-16V 15A power supply with current limiting July 1996
J. Mallas; Notes/errata: September 1996
Tone burst source for loudspeaker testing August 1996
Silicon Chip
Cordless telepone ring tone booster August 1996
A. March
Pulse stretcher for printer signal September 1996
E. Wormald
Low cost monitor amplifier for 32Ω headphones September 1996
Silicon Chip
Digital display for the geiger counter September 1996
B. Boggs; Notes/errata: Ref Projects Sept 90 & Oct 95
Millivoltmeter drive modification September 1996
J. L. ; Notes/errata: Ref Project August & September 1988
Printer port zero voltage detector October 1996
Silicon Chip
Muting the LM3886 module October 1996
Silicon Chip; Notes/errata: Ref Projects March 94 & Feb 95
6V motor speed/direction controller October 1996
S. Carroll
Swimming pool lap counter November 1996
S. Isreb
Obtaining balanced & isolated 9V supply rails November 1996
Silicon Chip
9V nicad battery saved/regulator November 1996
S. Carroll
Thermostatic fan controller November 1996
Ed Fudala
Overload protected power supply December 1996
B. Low
VCO has constant mark/space ratio December 1996
D. Timmins
Adding 1/4 stops to the Phototimer December 1996
Silicon Chip; Notes/errata: Ref project April 1995
Nicad battery discharger has capacity indication January 1997
G. Cocks
A low cost darkroom lamp January 1997
T. Weedon
Precision analog multiplier February 1997
Herman Nacinovich
AC power supply for photographic flashgun February 1997
V. Erdstein
Automatic pump timer/controller March 1997
S. Carroll
Low voltage drop bridge rectifier March 1997
G. LaRooy
Audible headlight reminder March 1997
R. Baker
12V PA system has a balanced mic input April 1997
S. Williamson
Switching circuit for the M65830P digital delay April 1997
S. Eaton
12V or 24V lamp flasher April 1997
G. LaRooy
Passove network reduces DC offset effect May 1997
Bret Hirshman
SCR pre-regulator circuit May 1997
W. Jolly
Latched outputs for IR remote control May 1997
Silicon Chip; Notes/errata: Ref Project February 1996
Master/slave for fast clocks May 1997
R. P.; Notes/errata: Ref Project December 1996
Low-cost telephone intercom June 1997
A. Hellier
Low-loss solar battery charger June 1997
S. Carroll
Audio signal tracer with inbuilt amplifier June 1997
S. Williamson
JFET tester adaptor for DMMs July 1997
M. Frankowski
Cheap heatsink temperature sensor July 1997
G. LaRooy
Single gate oscillator July 1997
G. LaRooy
Timer with 240VAC switching August 1997
M. Frankowski
Pistol target frame timer August 1997
P. Howarth
Thermatic fan monitor September 1997
I. Bennet
Intercom uses touch phones September 1997
Nicholas d'Apice
Addressing the 16s message recorder September 1997
C. Milborn; Notes/errata: Ref Project July 1993
Low dropout 5V regulator October 1997
M. Frankowski; Notes/errata: November 1997
3-aspect signalling for model railways October 1997
D. Nowlan
Using the 12/24V speed controller as a dimmer October 1997
Silicon Chip; Notes/errata: Ref Project June 1997
SIngle supply version of LM3876/LM3886 modules November 1997
Silicon Chip; Notes/errata: Ref Projects March 1994 & February 1995
Square wave pulse generator November 1997
H. Nacinovich
Changing the Neon Tube Modulator November 1997
Silicon Chip; Notes/errata: Ref Project May 1997
High energy ignition for an old Jaguar November 1997
P. T. ; Notes/errata: October 1998
Waveform generator December 1997
A. Ellis; Notes/errata: Ref Project July 1997
BInary guessing game December 1997
P. Melmoth
Audio signal injector December 1997
R. Graham; Notes/errata: Ref Project June 1997
Monster servo uses a windscreen wiper motor December 1997
Nicholas Baroni
Preventing solenoid burnout December 1997
B. P.
Versatile laser beam door minder January 1998
A. Nguyen
12/24V courtesy lamp extender for cars January 1998
G. LaRooy
Programmable multispark CDI January 1998
Silicon Chip; Notes/errata: Ref Project September 1997
Solid state LED oscilloscope January 1998
P. Melmoth
Electronic circuit breaker February 1998
G. LaRooy
Simple op amp hybrid February 1998
S. Williamson
Quasi-peak detector February 1998
H. Nacinovich
RF noise generator March 1998
H. Nacinovich
Cheap ammeter using LEDs March 1998
G. LaRooy
240VAC-powered strobe lamp March 1998
S. Williamson
DC amplifier for CRT deflection April 1998
N. Baroni
Engine water temperature gauge April 1998
S. Williamson
Nicad cell tester & discharger April 1998
V. Erdstein
Torch battery recharger May 1998
V. Erdstein
Deluxe LED tester identifies leads May 1998
Leon Williams
Linear voltage controlled oscillator May 1998
Herman Nacinovich
Charging lithium ion cells June 1998
John Clarke
Current indicator for 12V battery chargers June 1998
Steve Carroll
Code access control June 1998
S. Williamson
Battery capacity meter circuit June 1998
V. Erdstein
Bargraph auto tachometer July 1998
S. Williamson
N-channel FET tester July 1998
S. Foster
Phase/program indicator July 1998
S. Williamson
1.5V DC-DC converter July 1998
Silicon Chip
Low voltage drop bridge rectifier August 1998
G. LaRooy
Thermal protection for power FETs August 1998
G. LaRooy
LOPT/shorted turns tester August 1998
Stuart Williamson
Stepper motor driver August 1998
David Mueller
High frequency driver protection August 1998
Stuart Williamson
Optoelectronic ignition August 1998
I. H. ; Notes/errata: Ref High Energy Ignition Project, May 1988
0V output for adjustable 3-terminal regulators September 1998
S. Carroll
Simple relay voltage booster September 1998
S. Carroll
DVM adaptor for high frequency AC September 1998
G. LaRooy
Automatic reversing for model trains September 1998
Steve Opperman
Independant messages from sound recorder October 1998
K. Ferguson
Charger controller for an outboard motor October 1998
Silicon Chip
Fuel injector driver for added power October 1998
Silicon Chip
Frequency doubler for a cruise control October 1998
Silicon Chip
DTMF radio alarm system November 1998
P. Howarth
Regulator for a car battery charger November 1998
V. Erdstein
Improved relay voltage booster December 1998
A. Ellis
LED indication for 12V SLA charger December 1998
R. Sewell
Speed alarm & digital speedometer December 1998
K. McCarroll
Timed audible alarm January 1999
R. Sewell
9V battery checker January 1999
Ben Critchley
Low current shunt regulator January 1999
A. March
Balanced input & bridging module January 1999
S. Williamson
PC stake crimper January 1999
Alex Mattill
24V output for trickle charger February 1999
Silicon Chip
Timed audible alarm February 1999
Silicon Chip
Temperature controlled fan for power amplifiers February 1999
S. Williamson
Bedside lamp/tape recorder timer February 1999
Brian Critchley
Optical pickup for 5-digit tachometer March 1999
SILICON CHIP; Notes/errata: Ref Project October 1997
PC-controlled LED matrix display March 1999
Kane Partridge
Simple alarm circuit March 1999
J. Draper
12V charge indicator March 1999
P. Noyes
Using the LED Ammeter on 24V March 1999
SILICON CHIP; Notes/errata: Ref Project January 1999
Solid state relay circuit March 1999
G. LaRooy
Relax your brain with just two LEDs April 1999
S. Williamson
You have mail in your letterbox April 1999
M. King
9V battery monitor April 1999
John Kreckler
Simple tester checks transistors & continuity April 1999
Brenton Dick
Random LED flasher April 1999
Brian Critchley
Add bass harmony to a guitar May 1999
S. Williamson
Add remote control to an old VCR May 1999
Chris Dunn
Simpler metering circuit for capacitance meter May 1999
SILICON CHIP; Notes/errata: Refer Project February 1999
Low frequency RF preamplifier May 1999
R. Milne
Logic probe with 7-segment display June 1999
T. Jackson
Bistable motor switch June 1999
P. Carter
Extra reversing light for older cars June 1999
C. Potter
PC-controlled function generator June 1999
H. Nacinovich
Auto nicad charger with float July 1999
P. Boyle
DTMF decoder and 1Hz timebase July 1999
P. Howarth
Mains-powered remote control tester July 1999
Lee Martin
Rev limiter modifications for points distributors July 1999
Brett Hirschman; Notes/errata: Refer Project April 1999
Burglar alarm for continuous security August 1999
John Malnar
Simple 3-digit frequency counter August 1999
Chris Dunn
One chip audio preamplifier August 1999
S. Williamson
Foolproof audio compressor September 1999
S. Williamson
Dry cell battery checking September 1999
Brian Critchley
Surveillance lights with buzzer September 1999
SILICON CHIP; Notes/errata: October 1999
Audio distribution amplifier October 1999
S. Williamson
Automotive fuse monitor October 1999
A. Dullin
18W fluorescent light inverter uses ferrite rod October 1999
J. Draper
Low cost SLA battery charger October 1999
Victor Erdstein
Refinements to the PC Monitor Checker November 1999
Franc Zabkar; Notes/errata: February 2000
Simple Christmas light tester November 1999
G. Moore
Simple lights-on warning November 1999
M. Wovigliatti
Daytime Lights for Cars; negative line headlight switching November 1999
John Clarke, SILICON CHIP; Notes/errata: refer Project August 1999
Power-on muting for PC FM tuner December 1999
Mark Roberts; Notes/errata: Refer Project June 1999
Reverse battery protection with low voltage drop December 1999
H. Nacinovich
Backup battery for AC-powered cordless phones December 1999
Silicon Chip
Logic Probe With 7-Segment LED Display January 2000
T. Jackson
TTL decision maker January 2000
Luke Baldan
Battery charging from a 1V or 2V solar panel January 2000
H. Nacinovich
Paralleling the output of 3-terminal regulators January 2000
Steve Goebel
Buffered virtual ground generator January 2000
Julian Phillips
How to cut clean holes in plastic front panels February 2000
Barry Hubble
Using a photo-interrupter as a train detector February 2000
Silicon Chip
Monitor for 12V SLA batteries February 2000
Laurie Marshall
Constant current load for power supply testing February 2000
Silicon Chip
12V fan controller for lower noise February 2000
Paul Walsh
PC printer port controls I-V curve tracer March 2000
Silicon Chip
Adding LED indication to 12V trickle charger June 2000
Silicon Chip; Notes/errata: Refer Project October 1998
Low-cost logic indicator for PICs June 2000
Craig Rodgers
Speed controller for 240VAC universal (brush-type) motors June 2000
Herman Nacinovich
4-wire milliohm tester for DMMs July 2000
Silicon Chip
Fine & coarse power supply control July 2000
Karl Sundberg
Constant voltage charger uses LM317 July 2000
Silicon Chip
Soldering iron time-out August 2000
Tom Hughes
Split supply with low quiescent current August 2000
Manfred Schmidt
Mains power for battery-operated clock August 2000
C. D. Vickers
Off-hook indicator has better visibility August 2000
Michael Ong Yong Kin; Notes/errata: Refer Project January 2000
Improved engine immobiliser uses SCR September 2000
George Mackiewicz
A really simple transistor tester September 2000
David Milne
Different colours from a green LED September 2000
David Milne
Adding a timer to the NiCd discharger September 2000
Reg Carter
Opto-electronic version of high energy ignition October 2000
Silicon Chip; Notes/errata: November 2000
Water level indicator November 2000
A. March
Hi/Lo pulse indicator uses a 7-segment display November 2000
Raj K. Gorkali
Do-it-yourself car battery charger November 2000
P. King
Multi-station intercom uses CB microphones December 2000
Graeme Rixon; Notes/errata: Refer projects Champ Feb 94 & PreChamp July 94
Solar-charged battery regulator December 2000
Peter Howarth
Model Aeroplane Navigation Strobe/Battery Level Indicator January 2001
Robert Parker
Economy mic preamp has phantom power March 2001
Marque Crozman
Shaft rotation indicator March 2001
Silicon Chip; Notes/errata: Refer Speed Alarm, November & December 1999
Metering circuit for Sine/Square Generator May 2001
Silicon Chip; Notes/errata: Refer project February 2000
Crystal timebase for capacitance meter May 2001
Gregory Freeman; Notes/errata: Refer project May 1990
Convert a momentary pushbutton to alternate action June 2001
Brendan Ede
Precision voltage calibrator June 2001
D. R. Gott
Running a LED from 240VAC June 2001
Silicon Chip
Computer controlled chaser June 2001
Owen Klan
Vibrating VU meter August 2001
Andrew Partridge
Digital Trainers using 4000 series chips August 2001
Owen Klan
Thermistor addition for heat controller August 2001
Jeff Griffin; Notes/errata: Refer project July 1998
Low Ohms adaptor for DMMs based on an LM317 regulator September 2001
Peter Chamberlain; Notes/errata: December 2001
Switchable output crystal oscillator September 2001
Linear Technology
LED number display uses parallel port September 2001
Philip Chugg; Notes/errata: November 2001
Sound source locator uses PreChamp October 2001
P. Hetrelezis; Notes/errata: Refer project July 1994
Building a synchronous clock October 2001
A. J. Lowe; Notes/errata: November 2001
Blown fuse indicator October 2001
Keith Gooley
Central locking interface November 2001
Frank Keller
Alternative circuit for a white LED torch November 2001
Phillip Chugg; Notes/errata: Refer project December 2000
Temperature-controlled soldering iron November 2001
Herman Nacinovich
Using a LED as a light sensor November 2001
Andrew Partridge
Analog & digital modulation for laser pointers December 2001
Tony Barry
Measuring the current drain of devices with DC-DC converters December 2001
Andrew Partridge
Regulator for solar battery charger January 2002
E. Sherman
Simple time switch for battery-operated projects January 2002
Colin Christensen
Door monitor for a dog January 2002
Paul Walsh
Electric field proximity switch January 2002
J. A. Lee
White LED torch circuit uses flash parts January 2002
Duncan Graham; Notes/errata: Ref Project December 2000
NTSC-PAL TV signal identifier February 2002
G. F. J.
Grand Prix starting lights February 2002
David Richards
Tracking down scratchy pots February 2002
Andrew Partridge
Low cost battery condition indicator February 2002
Peter Wilson
Heart Rate Monitor February 2002
Tony Lee
Battery equality monitor March 2002
G. LaRooy
Pump controller for solar hot water system March 2002
John Clarke
Component & voltage tester March 2002
Philip Chugg
Radio controlled electronic flash April 2002
A. J. Lowe
Solar battery protector prevents excessive discharge April 2002
Michael Moore
Luminescent generator April 2002
Thomas Scarborough
Isolation for PC boards in cars April 2002
David Boyes
Neon flasher runs from 3V supply April 2002
Silicon Chip
Relative field strength meter for a DMM May 2002
Gerard LaRooy
Protection for white LED in torch May 2002
Rick Matthews; Notes/errata: Refer Project December 2000
Constant current LED drive May 2002
Keith Anderson
Loudspeaker protector monitors current June 2002
David Devers
Body charge detector June 2002
Thomas Scarborough
Modification to Smoke Alarm June 2002
Silicon Chip; Notes/errata: Ref Jan/Feb 97
Preamp stage for ceramic phono cartridge or violin pickups June 2002
Silicon Chip
Low-cost dual power supply July 2002
National Semiconductor
Cheap AC current measurements July 2002
Gerard LaRooy
Quick counter for young children July 2002
A. Lowe
Switchmode constant current source July 2002
H. Nacinovich
Passive RIAA preamplifier July 2002
Sam Yoshioka
Up/down timer for a power antenna July 2002
Peter Howarth
Soldering iron tip preserver August 2002
Alan March
TV relative signal strength meter August 2002
Ted Sherman
Simple card access control system August 2002
David Kadow
Petrol/gas switch for a Pajero August 2002
J. Malnar
Ultra low drop linear voltage regulator September 2002
Silicon Chip
Simple logic probe September 2002
F. Edwards
Battery tester for deaf-blind persons September 2002
Andrew Partridge
12V car battery charger September 2002
Trevor Murray
Awaken the deaf! September 2002
A. J. Lowe
DC automotive tester wth current probe October 2002
Howard Anthony
Winter charge booster for 12V car batteries October 2002
Stephen Butcher
Out of nine sequencer October 2002
Peter Olsen
Triple-LED version of torch October 2002
Phillip Chugg
Notes/errata: Ref Project December 2000, Notebook January 2002 and May 2002
Headlight controller for motor bikes October 2002
Stephen Butcher
Torch-enabled fuel cut-off for diesels October 2002
A. Doyle
Simple AM transmitter uses crystal ear piece as microphone October 2002
Peter Goodwin
Battery status indicator October 2002
Tony Ellis
Smoke alarm battery life extender October 2002
Paul Blackler
Simple Cat.5 network tester November 2002
Craig Stephen
Speaker-headphone switch for PCs November 2002
Leon Williams
Using AC for LED Christmas lights November 2002
Matthew Peterson
DC motor speed controller November 2002
Stephen Butcher
Tablet reminder uses watch module November 2002
Rasim Kucalovic
Short circuit protection for balanced supply rails November 2002
Mark Arnold
LED torch uses blocking oscillator December 2002
Peter Goodwin
Traffic lights for model cars or model railways December 2002
Jack Holliday
AFX slot car lap counter December 2002
Placid Talia
Capacitor leakage adaptor for DMMs December 2002
Andrew Partridge; Notes/errata: February 2003
Simple BFO metal locator December 2002
Thomas Scarborough
Simple AM radio receiver December 2002
Peter Goodwin
Motor speed control with protection January 2003
Duncan Graham
Magic wand for 3-way control January 2003
A. J. Lowe
Filter reduces supply ripple by 40dB January 2003
Silicon Chip
Automatic tape control for display stand January 2003
Max Walker
12V lead acid battery desulphator February 2003
Silicon Chip
Low supply rail detection circuit February 2003
Trent Jackson
Fifth channel for code-hopping remote control February 2003
Manfred Schmidt; Notes/errata: Refer Project July 2002
Simple headlight reminders February 2003
Andrew Gibbs
Automatically armed engine immobiliser February 2003
Don Adamson
In-situ battery test probe February 2003
Robin Stokes
Simple universal PIC programmer March 2003
Luke Weston
Automatic headlight switch March 2003
Rick Goodwin
Bat detector picks up ultrasound March 2003
Thomas Scarborough
Junkbox-parts oven timer March 2003
Jack Holliday
Super-regenerative receiver for AM & FM April 2003
John Hunter
Neon scintillator with 300V up-converter April 2003
A. J. Lowe
LED carnival game April 2003
Flippo Quartararo
Low cost pistol shooting game April 2003
Jack Holliday
Simple SLA battery charger April 2003
Phillip Chugg
Single entrance vehicle counter May 2003
R. Subramanian
Test interface for PCs May 2003
Phillip Chugg; Notes/errata: Refer project August 2002
White LED torch driver circuit May 2003
Tony Ellis
Adding outlets to an irrigation controller May 2003
Mike Shaw
Inductive speed sensor for cars June 2003
Rick Goodwin
Computer data cable tester June 2003
A. Liehr
Digital thermometer with LCD readout June 2003
K. J. Benic
Low battery indicator June 2003
Ashish Nand
555 timer circuit with variable on/off times June 2003
A. Davies
High-current battery discharger June 2003
Reg Carter
High current low-dropout regulator June 2003
Andrew Partridge
Infrared remote receiver has four outputs July 2003
Fred Edwards
Wide-range inductance meter July 2003
Gregory Freeman
Simple circuit charges up to 12 NiCds July 2003
Silicon Chip
Simple knock alarm with piezo sensor July 2003
Raj. K. Gorkhali
Adding a 100V line transformer to the SC480 amplifier July 2003
Silicon Chip; August 2003 (see Circuit Notebook)
Gym agility: a simple strategy game July 2003
Thomas Scarborough
Low-cost dual digital dice August 2003
Len Cox
Halogen lamp dimmer with soft start August 2003
Dennis Chuah
Maximum/minimum voltage indicator August 2003
Andrew Partridge
Correction - 100V line connection for SC480 amplifier August 2003
Silicon Chip
Internal resistance tester for batteries September 2003
Victor Erdstein
"Safe" oscillator for watch crystals September 2003
Duncan Graham
Pendulum-Controlled clock September 2003
A. J. Lowe
Super light sensor circuit September 2003
Thomas Scarborough
LED lighting for dual-filament lamps September 2003
SILICON CHIP; Notes/errata: Ref LED Lighting For Your Car Project, March 03
Interactive toy traffic lights October 2003
Andrew Partridge
Automatic white-LED garden light October 2003
Nick Baroni
Multipurpose flipflop timer October 2003
Trent Jackson
PICAXE-based bicycle odometer October 2003
Tont Verberne
Making the Flexitimer cycle on and off November 2003
Silicon Chip; Notes/errata: Ref EA Project March 1991
Low battery indicator November 2003
I. Ross
A simple 9-way cable identifier November 2003
J. Begg
Clipping indicator for audio amplifiers November 2003
Philip Chugg
8V DC supply with overvoltage protection November 2003
L. Cox
Cheap switchmode DC-DC converter November 2003
Timo Mahoney
Simple 6-input alarm circuit December 2003
R. Love
Courtesy light extender December 2003
Matt Downey
Battery replacement power supply December 2003
Philip Button
Automatic headlight reminder December 2003
L. Marshall
Speed alarm for cars December 2003
Col Edwards
Low-Cost Burglar Alarm For Boats January 2004
Dave Jeanes
Remote Alarm For Smoke Detector Circuit January 2004
Troy McDonaugh
Yes/No Indicator Has Zero Standby Current January 2004
Thomas Scarborough
Battery Charger Regulator January 2004
Paul Walsh
Video Tracer For Trouble-shooting January 2004
Leon Williams
Cable Tester Uses A Quad Latch February 2004
Ashley Dawson
Phantom Supply For Lapel Microphone Adaptor February 2004
Alan Morrow
Frequency Multiplier For LF Measurements February 2004
J. Begg
LED Chaser Provides Three Game Functions February 2004
John McCuaig
Car battery failure detector March 2004
Victor Erdstein
Signal meter for weather satellite receiver March 2004
Silicon Chip; Notes/errata: Refer Project December 2003
Switch timer for bathroom light March 2004
Rasim Kucalovic
Fully adjustable power supply March 2004
Philip Chugg
Model theatre lighting dimmer March 2004
Barry Freeman
4-wire stepper motor driver March 2004
Paul Chen; Notes/errata: February 2005
Curve tracer adaptor April 2004
R. Rayner
Logic probe with sound April 2004
Tom Hughes
7.2V battery replacement for camcorders April 2004
Silicon Chip
Stroboscope uses white LEDs April 2004
K. J. Benic
One ADSL filter serves several phones May 2004
Julian James
Exit sign with battery protection May 2004
Brad Sheargold
PICAXE home security project May 2004
Paul Walsh
Low-cost low-intensity alarm May 2004
Michael Jeffery
PICAXE-based car speed alarm May 2004
Henri W. Klok
Voice bandwidth filter June 2004
M. Sharp
El-cheapo fluoro ballast June 2004
Adrian Kerwitz
Surveillance camera recorder June 2004
Darren Michell
Handy time delay with relay output June 2004
R. Besana
Experimental pendulum clock June 2004
A. J. Lowe
Using Dr Video Mk2 To Process NTSC Video July 2004
Silicon Chip; Notes/errata: Refer project June 2004
Room Recorder (Simple Microphone Preamp) July 2004
Thomas Scarborough
An Accurate Reaction Timer July 2004
A. J. Lowe
Picaxe-Based Cable Tester July 2004
Andrew Partridge
Picaxe Code Stops False Triggering July 2004
Paul Walsh
Stepper Motor Controller July 2004
Peter Van Der Velden
How To Connect Two PCs Using Modems July 2004
Filippo Quartararo
Electronic conjuring trick August 2004
Thomas Scarborough
Adding an “RGB Flag” output to the Component Video/RGB Converter August 2004
Kit(s): Refer project May 2004
Silicon Chip
Keypad decimal encoder August 2004
Peter Howarth
PICAXE-controlled solar fountain August 2004
Robert Gatt
USB-powered PIC programmer September 2004
Luke Weston
Quartz clock flasher protects equipment September 2004
A. J. Lowe
Economical desk lamp for camping September 2004
John Amos
Multi-level lock system September 2004
Thomas Scarborough
Two switches share one pin September 2004
Andrew Partridge
PICAXE-controlled battery charger September 2004
Ray Sonter; Notes/errata: January 2005, March 2005
Bike battery charger October 2004
Paul Breuker
Light-controlled pond pump October 2004
Ian Hogan
6-station sprinkler controller October 2004
Ron Russo
Four-channel oscilloscope adapter October 2004
Ashish Nand
One-second darkroom ticker November 2004
A. J. Lowe
Low coolant alarm for Falcon EF & EL November 2004
Robert Gott
Simpler PC power-up November 2004
Tarek Heiland
Micro timer with LED readout November 2004
Brett Cupitt
Water pump monitor November 2004
Jeff Monegal
Reducing the effective mains voltage November 2004
Silicon Chip
Simple combination lock December 2004
Len Cox
Bare bones ESR tester December 2004
Graham Jackman
Ultrasonic rangefinder for robots December 2004
Andrew Partridge
Festive doorbell December 2004
Mike Talbot
Junk-box fan speed controller December 2004
Martin Cook
Lithium-Polymer Peak Charger January 2005
Wayne Robert
Simple White Noise Generator January 2005
David Eather
Efficient Fan Speed Controller January 2005
Brad Sheargold
PICAXE-Based Toy Traffic Lights With Battery Saver January 2005
Andrew Partridge
12V Halogen Dimmer January 2005
Mike Dennis
Laser-Guided Parking Aid February 2005
Ron Russo
Novel White LED Torch February 2005
Mick Stuart
Electronic Thermostat For Plug-In Heaters February 2005
Ian Hood
ESR & Low Resistance Test Meter February 2005
Len Cox
Headlight Reminder March 2005
Bruce Colledge
El Cheapo Cable Tester March 2005
Grant Walker
Aviation Intercom March 2005
Gary Smith
Reverse Polarity Protector March 2005
Bruce Griffiths
Touch Lamp Remote March 2005
Andrew Hicks
Simple Under-Voltage Cut-Off March 2005
Jay Williams
Picaxe-Based Freezer Thermostat March 2005
Paul Rodenhuis; Notes/errata: May 2005
Automatic Security Lights April 2005
Jeff Monegal
Op Amp Auto-Zero Circuit April 2005
Graham Jackman
Synthetic Floating Negative Inductor April 2005
Saumitra Raj Mehrotra
Plugpack Checker April 2005
Thomas Scarborough
Automatic Bathroom Exhaust Fan May 2005
W. A. Fitzsimons
Low-Voltage Cutout For 12V SLA Batteries May 2005
Tim Nuske
Your Probing Questions Answered May 2005
Bob Hammond; Notes/errata: August 2005
Automotive LED Timing Light May 2005
K. J. Benic
Solar Hot Water Controller June 2005
Keith Gooley
Two Basic Motor Speed Controllers June 2005
Ravi Sumithraarachchi
Op Amp Building Blocks June 2005
Andrew Partridge
Improved Stability For Dr Video July 2005
Nick Graham; Notes/errata: Ref June 2004
Simple IR Remote Control Extender July 2005
Ron Russo
Cordless Drill Auto-Charger July 2005
Clive Allan
RGB-to-Component Video Converter Fix July 2005
Graham Bowman; Notes/errata: Ref project October 2004
Using A Transistor As a High-Power Zener July 2005
Michael Ong
Low-Voltage Remote Mains Switch July 2005
Bob Hammond
LED Noughts & Crosses August 2005
A. J. Lowe
Vertical Sync For The Component Video To RGB Converter August 2005
Silicon Chip; Notes/errata: Ref project May 2004
Audio Level Threshold Control August 2005
Graham Jackman
Cheap Pump Controller August 2005
Adrian Hudson
DC-DC Converter For USB Supply Or PICAXE Projects August 2005
Barry Hubble; Notes/errata: Ref project March 2004
Antenna Input & Audio Line-Out Adaptor For Portable Radios September 2005
Michael Bauer
Automatic Alternate Motor Switch September 2005
Jeff Jorgensen; Notes/errata: October 2005
Filter For “Ripple Control” Mains Tones September 2005
Jim Rowe; Notes/errata: October 2005 - WARNING! DO NOT USE CIRCUIT
PICAXE RGB LED Display September 2005
Silicon Chip; See also Circuit Notebook, June 2006
Morse Code Practice Oscillator September 2005
Craig Kendrick Sellen
Discrete Dual-Tracking Power Supply October 2005
Rod Smith
PICAXE-Controlled Bird Brooder October 2005
David Crowley
Electronic Nim Game October 2005
A. J. Lowe
Trickle Charger Uses An Optocoupler October 2005
Chris Baker
1W LED Driver Circuit November 2005
Nick Baroni
Simple RJ-45 Cable Tester November 2005
Glenn Jordan
Load Sharing Multiple Supplies November 2005
Kelvin Lawrence
Improved LED Torch November 2005
Col Hodgson
Paraphase Tone Control November 2005
F. Winkler
Solar Hot Water Differential Pump Controller December 2005
Mike Scaife
The "Mystery Swinger" December 2005
A. J. Lowe
Clap-Controlled Switch December 2005
Li-Wen Yip
Winch Controller For Boaties & 4WDers January 2006
Bob Hammond
Pushbutton Relay Selector January 2006
Jim Rowe
Battery Desulphation Progress Monitor January 2006
Graham Lill
Dual Input-Combining Stereo Line Amplifier January 2006
Garth Jenkinson
Nicad Charger Uses Voltage Cut-out January 2006
Ravi Sumithraarachchi
Morse Code Identification Unit February 2006
James Cutler
Automatic Soldering Iron Controller February 2006
Jeff Monegal
Improved Speed Alarm Sensor February 2006
Robin Stokes; Notes/errata: Refer Project November/December 1999
Steam & Diesel Loco Sounds March 2006
Greg Hunter
Long Life Lamp Beacon March 2006
Gary Smith
Sensitive Over-Current Protector March 2006
Keith Gooley
Accurate Milliohm Meter March 2006
Hugh Middleton
Delay Circuit For Power Windows March 2006
Rod Smith
Versatile Electronic Load SC 04112051 March 2006
Jim Rowe
4-20mA Current Loop Tester April 2006
Allan Doust
“Beer-O-Magic” Temperature Controller April 2006
Peter Naus; Notes/errata: September 2006
Improved Automatic Exhaust Fan May 2006
W. A. Fitzsimons
A Rotary Encoder For Your PIC Project May 2006
Bryce Templeton
Tank To Cistern Pump May 2006
Geoff Coppa
PICAXE-Powered Pocket Timer May 2006
Eric Rodda
Miniature LED Torch Bulbs May 2006
Peter Dixon
PICAXE Drives Nokia LCD June 2006
Robert Gatt
Improved PICAXE RGB LED Display June 2006
Gordon Appleton; Notes/errata: Refer Circuit Notebook, September 2005
Low-Coolant Alarm For EA-ED Falcons June 2006
S. Buckland
Mains Frequency Monitor July 2006
Craig Kendrick Sellen; Notes/errata: February 2007
RC Phase-Shift Oscillator July 2006
Malcolm Sharp
Add Tick’n’Tock To A Quartz Clock July 2006
A. J. Lowe
Simple Judging System For Photography Clubs July 2006
Joe Brandwyk
Infrared Remote Extender August 2006
Alex Sum
PICAXE Battery Protector August 2006
Terry Mowles
Mains-Derived Timebase August 2006
Gary Smith
Automatic Daytime Running Lights August 2006
Graeme Duncan; Notes/errata: September 2006
Cheap 1W Luxeon LED Driver August 2006
Dave Sime
Protected 12V Automotive Supply September 2006
John Rigon
Improved Delay Circuit For Power Windows September 2006
Murray McGregor
Reliable 4-Channel RF Switch September 2006
Jack Holliday
Expandable 2-Digit LED Counter September 2006
Jeff Monegal
Cheap, Reliable LED Torch September 2006
Guy Burns
Battery Capacity Tester October 2006
Guy Burns
Temporarily Silencing A Smoke Detector October 2006
W. A. Fitzsimons; Notes/errata: Refer Project February 1996
Cheapskate’s Headset Adapter October 2006
Brian Critchley
Reservoir Pump Controller October 2006
Peter Howarth
Wiegand Decoder November 2006
Ben Gillson
Electronic Combination Lock November 2006
Raj. K. Gorkhali
Model Train Detector November 2006
Thomas Scarborough
PICAXE To LCD Interface November 2006
Peter Burgess
PICAXE-Controlled Yoghurt Maker November 2006
Mather Tiede
Mains Zero-Crossing Recovery December 2006
Herman Nacinovich
Improved Vibrating Battery Tester December 2006
Andrew Partridge
CB Radio Beeper With Selectable Tones December 2006
K. Howell
Inexpensive Remote Watering System December 2006
Francis Egan
DRM Down-Converter For 455kHz IF Receivers January 2007
John Titmuss
Toslink Splitter January 2007
Mike Abrams
Mechanical Soldering Iron Timer January 2007
Ron Russo
Telephone Intercom Using Old Handsets January 2007
Brian Critchley
Versatile Multi-Driver Speaker Connections January 2007
Andrew West
3-Digit LED Stopwatch January 2007
Michael Jeffery; Notes/errata: February 2007
4-Channel RF Remote Switch February 2007
Claude Zambelli
Sinewave-To-Digital Clock Shaper February 2007
Bruce Griffiths
Tachometer & Elapsed Time Accumulator February 2007
Alexander Radford
PICAXE-Controlled MP3 Doorbell February 2007
Richard Van Wegen
12/24V Auxiliary Power System March 2007
Anton Von Sierakowski
Portable Headphone Amplifier March 2007
Martyn Goodwin
Preamplifier For Moving Coil Magnetic Cartridges March 2007
Silicon Chip; Notes/errata: Refer project August 2006
Odd/Even Day Watering Solution March 2007
Ralph Smith
Fun With Flashing LEDs March 2007
A. J. Lowe
LCD Clock Battery Upgrade March 2007
Michael Ong
Optical Water Level Switch April 2007
Phillip Foote
12V SLA Battery Capacity Tester April 2007
Cliff Wylie
Measuring High-Q Inductors April 2007
Bruce Griffiths
Rotary Encoder Interface April 2007
Keith Bolton
Stage Microphone Muting Circuit April 2007
Robert Budniak
LED Pattern Flasher Uses Ripple Counter May 2007
Thomas Scarborough
IR Remote Control Tester Has Audible Output May 2007
Michael Jeffery
Slave Flash Trigger For Digital Cameras May 2007
Fernando Garcia
Using A Stereo Amplifier As A 3-Input Guitar Amplifier May 2007
Jack Holliday
Low-Dropout Voltage Regulator For Battery Equipment; May 2007
Mark Aitchison
2-Channel Background Sounds For Model Railways May 2007
Hugh Middleton
Simple Battery Isolator June 2007
Dave Sargent
Using The PICAXE In SPI Mode June 2007
Martin Daines
LED Stroboscope Uses A Frequency Counter To Measure RPM June 2007
Peter N Churchill
Egg Timer Uses One CMOS IC June 2007
Geoff Nicholls
PICAXE-Based Tank Pump Controller July 2007
Paul Walsh
Halogen Lamp Optical Pyrometer July 2007
Victor Erdstein
Timer For MIG Welder July 2007
Cliff Wylie
Simple DC Motor Speed Control July 2007
Michael Azzopardi
Make Your Own SMD Tools July 2007
Ron Russo
Leap-Frogging LED Chaser July 2007
A. J. Lowe
Traffic Indicator Works From 12V or 24V August 2007
Ron Groves
Airflow Detector Uses Hot Lamp Filament August 2007
Brett Cupitt
Alarm Monitors Up To Nine Freezers August 2007
Graham Jackman
PICAXE Thermostat For A 240VAC Heater August 2007
Craig Simmons
MP3 Player Remote Control August 2007
Placid Talia
White LED Touch Light August 2007
Thomas Scarborough
Alarm Clock With Day Selector September 2007
Rasim Kucalovic
DC-DC Converter Has Two Outputs September 2007
Roy Dickman
IR LED Used As Remote Control Checker September 2007
Geoff Nicholls
Battery Saver Under Micro Control September 2007
Roger Marley
Musical Doorbell Based On A Toy Piano September 2007
A. J. Lowe
Phone Call Alert For The Partially Deaf September 2007
Dave Jeanes
Bi-Directional Variable Speed Drive Includes Regeneration October 2007
Neville Armstrong
Pea & Thimble Or 3-Card Trick October 2007
A. J. Lowe
Emergency Lights Controller October 2007
Colin Carpenter
Two Novel LED Flashers October 2007
Geoff Nicholls
Adjustable Q For Subwoofer Equaliser October 2007
Philip Chugg
PIC-Controlled SLA Battery Capacity Meter November 2007
David Mitchell
Audio Link Via Cat.5 Cable November 2007
Fred Arden
Simple Model Train Controller November 2007
Hugh T. Middleton
R/C Servo Exerciser November 2007
Robert Budniak
Animation For Mobiles November 2007
A. J. Lowe
Discrete Component Low Dropout Regulator November 2007
Phillip Foote
In-Car Charger & Switcher For An SLA Battery December 2007
Fernando Garcia
Simple Water Pump Controller December 2007
T. A. Babu
Temperature-Controlled Fridge Fan December 2007
Darren Kirkegard
Low-Current Stable Clock Source December 2007
Joe Colquitt
Quiz Adjudicator Has No Pushbuttons December 2007
A. J. Lowe
Doorbell Circuit With Zero Standby Current December 2007
T. A. Babu
Buck & Boost Regulator December 2007
Gregory Freeman
Nicad Cell Discharger January 2008
Brian Critchley
CFL Inverter Has Overload Protection January 2008
Dave Edwards
Spa Heater Control January 2008
Clive Allan
Using The Enhanced Voice Recorder In A Model Railway February 2008
Jim Rowe; Notes/errata: Refer project December 2007
Recharge-able Cell Logger & Discharger February 2008
Peter Shooter
Infrared Light Beam Relay February 2008
T.K. Hareendran
Novel Neon Flasher With Low Current Drain February 2008
Thomas Scarborough
TV Field-Strength Meter March 2008
Henry Bowman
Alternator Controller For Charging Deep Cycle Batteries March 2008
D. Edwards
Emergency Light Uses 3W White LED March 2008
T. K. Hareendran
PICAXE Light Box Countdown Timer March 2008
Cliff Wylie
Impedance Bridge Measures At Three Frequencies March 2008
Fritz Winkler
Simple Mosfet Tester March 2008
Henry Bowman
PC Cooling Fan Driver March 2008
T. K. Hareendran
Timer Has Zero Current After Shutdown April 2008
A. J. Lowe
Regenerative Shortwave Radio Receiver Has Audio Limiter April 2008
D. S. Edwards
Two-Way Active Crossover Uses Transconductance Amplifiers April 2008
Malcolm Sharp
Magnetic Proximity Switch April 2008
T. K. Hareendran
Simple 9V Battery Tester April 2008
John Clarke
Frequency Indicator For Generating Equipment May 2008
Dayle Edwards
Optical Smoke Detector May 2008
T. K. Hareendran
Constant-Current LED Navigation Lights May 2008
Josh Stevenson
Biased Yes Or No Circuit May 2008
A. J. Lowe
24V & 6V Versions For The Battery Charge Controller May 2008
John Clarke; Notes/errata: Refer Project April 2008
Photo- Interrupter Bias Circuit For Electronic Ignition Systems June 2008
Silicon Chip
Synchronous AM Detector For Improved Shortwave Reception June 2008
Dayle Edwards
Infrared Close Object Detector June 2008
T. K. Hareendran
Meteoric LED Display June 2008
A. Lowe
6-Digit Demonstration Counter June 2008
Joshua Beck
Simplified Headphone Adaptor June 2008
Hugh Paton; Notes/errata: Refer Project April 2008
PIC Capacitance Meter Measures Charging Time July 2008
William Andrew
Mobile Phones Can Power PICAXE Circuits July 2008
Colin Carpenter
Programming Remote Control Codes For The CD-ROM Playback Adaptor July 2008
Silicon Chip; Notes/errata: Refer Project November 2007
Simple Door Guard Alarm July 2008
T. K. Hareendran
12V CDI For Motorbikes July 2008
Dayle Edwards
Universal Ding-Dong Chime Driver July 2008
Thomas Scarborough
Expanded Scale Voltmeter July 2008
Dayle Edwards
PICAXE 21 Game July 2008
Ross Olsen
Charging Controller For 12V Lead-Acid Batteries August 2008
Jim Rowe
Random Direction Control For A Model Railway Layout August 2008
Geoff Nicholls
Balanced Supply Rails From A 12V Battery August 2008
L. Kerr
Antenna Resonance Indicator August 2008
Dayle Edwards
Universal IR Remote Control Repeater August 2008
Peter Gee
Kill Those Adverts Quickly With The Supermute September 2008
Andrew Buchanan
4017 Counter Tester September 2008
A. J. Lowe
PICAXE-Based Star 5W LED Control Unit September 2008
Peter Shooter
Water Tank Level Indicator September 2008
Ron Groves
A Low-Power Class-A Valve Amplifier September 2008
Dayle Edwards
Sweep Frequency Generator For Audio Testing September 2008
William Oliver
USB-Controlled Desk Lamp October 2008
T. K. Hareendran
Tester For Ultrasonic Devices October 2008
Graham Jackman
Tacho Interface For Diesel Motors October 2008
Dayle Edwards
Smart Pool Pump Controller October 2008
Paul Walsh
PICAXE-Based Mosfet Tester October 2008
Fernando Garcia
Converting A Linear Pot To A Log Curve November 2008
Silicon Chip
Phone Mute System For PA Sound Systems November 2008
Ron Russo
12V-High Voltage Inverter November 2008
Dayle Edwards
Exerciser For Manual Dexterity November 2008
A. J. Lowe
Speed Control For Bosch IXO Cordless Screwdriver November 2008
John Clarke
Vandal-Proof Bell Button For Entry Gate November 2008
Leigh Bateman
Fuzz Box For Guitars December 2008
Craig Kendrick Sellen
Monitor For Pet Bed Heater December 2008
Geoff Coppa
One-Button Camera Timer December 2008
Andrew Armstrong
VHF Aircraft Receiver With Squelch December 2008
Dayle Edwards
Toy Poker Machine Is No Risk To Wallet December 2008
A. J. Lowe
Battery Monitor Has Low Current Drain December 2008
Steven Graham
Fuel Economiser Uses Strain Gauge On Accelerator January 2009
Brett Cupitt
Phone Ringer With Remote Control January 2009
Julian James
Solar-Powered Backyard Lighting System January 2009
Phillip Storey
Crystal-Controlled Shortwave Converter January 2009
Dayle Edwards
Switchless Intercom January 2009
Craig Kendrick Sellen
Model Railway Track Cleaner January 2009
Geoff Monegal
Tricks With A 4017 Chaser February 2009
A. J. Lowe
Low-Power Analog Computer February 2009
Malcolm Sharp
Loud Repeater For Traffic Indicators February 2009
Robert Baker
Semiconductor Evaluator For Scope February 2009
Craig Kendrick Sellen
Bedside Lamp Controller February 2009
Jeff Monegal
Modification To Yaesu FRG7 SW Receiver March 2009
Dayle Edwards
Solar-Powered Fountain Driver March 2009
Andrew Bennett
Simple Circuit Measures The Temperature Of Hot Water Systems March 2009
Roy Mercer; Notes/errata: June 2009
Fast Clock Driver For Model Railway Layouts March 2009
Geoff Monegal
USB Polarity Tester Is Worthwhile Insurance March 2009
Steven Anthony
Automated Water Tank Filler April 2009
Geoff Hitchman
Modified Flexitimer April 2009
John Clarke; Notes/errata: Ref EA March 1991
RS232C To Current Loop Converter April 2009
Andrew Partridge; See Mailbag May 2009 for modifications
Simple Counter Uses Crystal Clock As A Readout April 2009
Rev Thomas Scarborough
High-Side Current Monitor April 2009
Nicholas Vinen
Electronic Kaleidoscope April 2009
A. J. Lowe
12V Regulated Inverter Supply May 2009
Dayle Edwards
Solar Panel Tracker Uses LED Sensors May 2009
Jim Hewson
PICAXE-Based Solar HWS Boost Control May 2009
Colin Carpenter
Reticulation Valve Locator May 2009
Alan Doust
3-Stage Dimmer For Mountain Bike Light May 2009
Doug Brown
Overvoltage Protection For DC Loads May 2009
Peter Reed; Notes/errata: November & October 2009
Preamplifier For Speed Controller May 2009
Herman Nacinovich; Notes/errata: July 2009
One-in-five timer June 2009
John Clarke
External USB supply for iPOD touch June 2009
Jeff Teasdale
Remote control extender for Foxtel June 2009
Jack Holliday
Electronic mousetrap June 2009
Richard Van Wegen
4-20mA current loop tester June 2009
Peter Laughton
Tester for rotary encoders June 2009
Jeff Teasdale
Floating current source has wide supply voltage range June 2009
Andrew Partridge
Modified vehicle voltage monitor June 2009
Silicon Chip; Notes/errata: Refer project May 2006
20-LED chaser uses SCR flipflop June 2009
A. J. Lowe
RF Preamplifier For World-Band Receivers July 2009
Dayle Edwards
Simple Water Spillage Alarm July 2009
Warwick Talbot
Signal Inverter Runs From 5V Rail July 2009
Reuben Posthuma
Accurate Timer Locked To 50Hz Mains Supply July 2009
Jack Holliday
Enhanced Software For The Appliance Energy Meter July 2009
Geoffrey Graham; Notes/errata: Refer project July & August 2004
Phase Modulator Vibrato For Musical Instruments August 2009
Craig Sellen
Fractional Frequency Division With A PICAXE August 2009
Fernando Garcia
12V To 36V DC Converter August 2009
Merv Thomas
Stereo Stethoscope For Troubleshooting August 2009
Dayle Edwards
FireWire-Sensing Mains Power Switch September 2009
Les Kerr
A Discrete Op Amp For Audio Use September 2009
Alex Sum
Temperature-Sensing Battery Charger Cut-Out September 2009
John Malnar
6-Digit PICAXE Timer September 2009
Jack Holliday
Relays Can Do It By Themselves September 2009
A. J. Lowe
High-Current Voltage Doubler September 2009
Dayle Edwards
Replacement For A Power Transformer In A Valve Radio October 2009
Roderick Wall
RS232 To IrDA Transmitter October 2009
Greg Poole
Audio Power Meter With Programmable Load October 2009
Malcolm Sharp
Electronic Tank Gauge/Pump Control For Caravans & Boats October 2009
Ray Sonter
Ultra-Low Power Flasher October 2009
James Goding
Solar-Powered Automatic Garden Lighting System November 2009
Colin O'Donnell
Relay Switcher For Testing Diodes & Transistors November 2009
John Malnar
Power Supply Stacks Two Voltage Doublers For Balanced Rails November 2009
Nicholas Vinen
Modulated Oscillator For AM Radio Alignment November 2009
Alex Sum
Passive RIAA Valve Preamplifier November 2009
Dean Brookes
Trailer Lights Test Circuit December 2009
Bob Winchester
Rain Sensor Uses AC December 2009
Alfred Hirzel
RF Wobbulator For Checking AM/FM Receivers December 2009
Dayle Edwards
Solar-Powered Night Light December 2009
Anthony Dunk
PICAXE-controlled slow-down for DCC model trains January 2010
Jeff Monegal
Simple battery tester uses quartz clocks January 2010
Poul Kirk
Your old mobile phone battery can power a LED torch January 2010
John Crichton
Bathroom fan/timer has single switch operation January 2010
Jeff Thomas
PICAXE digital clock and switch control January 2010
Jack Holliday
Shower/egg timer uses red & green LEDs February 2010
A. J. Lowe
Switchmode LED driver February 2010
Brenton Schuz
Self-interrupting PICAXE February 2010
Bill Humphrey
Trailer wiring tester February 2010
Peter Boyle
Lithium-ion powered reading light February 2010
John Russell
PICAXE-controlled watering system February 2010
Paul Walsh; Notes/errata: March 2010
Capacitance meter is based on reactance March 2010
Malcolm Sharp
Beam-break detector for camera shutter or flash control March 2010
Graham Jackman
Discrete low-dropout voltage regulators March 2010
Nicholas Vinen
Simple FM receiver has pulse-counting detector March 2010
Alex Sum
Adding a restart to the modified Flexitimer April 2010
John Clarke; Notes/errata: Ref John Clarke Circuit Notebook April 2009
Simple panoramic adaptor for a communications receiver April 2010
Dayle Edwards
Constant current source LED sorter April 2010
A. J. Lowe
Blackout alarm for a life-support machine April 2010
Brian Coulson
Cancelling op amp input bias current April 2010
Andrew Partridge
Momentary switch teamed with latching relay May 2010
Merv Thomas
Digitally-controlled tone filter May 2010
Nicholas Vinen
People counter uses light beams May 2010
Craig Kendrick Sellen
Switching balanced microphones using a foot switch May 2010
John Clarke
Level translator for a PIC programmer May 2010
Andrew Partridge
PICAXE traffic light controller May 2010
Paul Vaughan
Float charger for NiMH cells June 2010
David Eather
Low-cost gigaohm decade resistance box June 2010
Jim Rowe
12V to ±24V switched capacitor supply June 2010
Nicholas Vinen
Using the Voltage Interceptor with a frequency output air-flow meter June 2010
John Clarke
Programming adaptor for the WIB microcontroller June 2010
Trevor Woods; Notes/errata: Refer project November/December 2009/January 2010
Using 12V LED replacement lamps in cars July 2010
Roy Flynn
UHF link for remote control extender July 2010
Jack Holliday; Notes/errata: Refer project October 2006
Modifying the Flexitimer for short intervals July 2010
Silicon Chip; Notes/errata: Refer project EA March 1991
Sound-triggered camera July 2010
Timothy Crute
Check inductors with this simple Q meter August 2010
Alex Sum
DC motor speed sensing August 2010
Gerard LaRooy
Adding protection diodes to positive/negative regulator circuits August 2010
Nicholas Vinen
SCR circuits based on discrete transistors August 2010
A J Lowe
Playing dice games with a PICAXE08M August 2010
Ian Robertson
Random playback trigger for the Voice Recorder August 2010
Nicholas Dunand; Notes/errata: Ref project December 2007
PICAXE refrigerator timer for cafes September 2010
Philip Webb
PICAXE I/O demonstrator circuit September 2010
Ian Robertson
Magnetic pole & flux strength indicator September 2010
Brett Cupitt
Automatic exterior light September 2010
Rob Leplaw
6-stage cascaded timer uses SCRs September 2010
A J Lowe
PIC-based water distributor October 2010
David Bathgate
Auto-sensing master/slave power control October 2010
Jack Holliday
USB-powered headphone amplifier October 2010
Rodney Hedger
PICAXE supply uses supercaps for backup October 2010
Brett Cupitt
Cat door control October 2010
Nigel Quicke & Keith Kendrick
Electronic fuse employs a relay November 2010
Michael Azzopardi
Golf buggy battery charger control November 2010
Merv Thomas
Reversing camera delay November 2010
Peter Wright
Lullaby & lamp timer November 2010
A J Lowe
High-performance shortwave converter November 2010
Dayle Edwards
Using the LM335Z for temperature measurement December 2010
John Clarke
Dual motor control circuit for robotics applications December 2010
Peter Ermen
Wien bridge oscillator uses paralleled op amps December 2010
Petre Petrov; Notes/errata: January 2011
LEDs & Ladders: the 2010 version December 2010
Ian Robertson
Lightning detector uses 555 timer December 2010
Carl Morey
Fuel Flow Meter For Diesel Engines January 2011
Craig Polley
NMEA Interface For EM-480 GPS Module January 2011
Geoffrey Graham
PIC-Based Direct Digital Synthesiser January 2011
Brenton Schulz
RC5 Infrared Remote Control January 2011
Ben Lennard
Power Supply For Salvaged Amplifier January 2011
Ron Groves
PICAXE-Based Dual Frequency Counter February 2011
Brett Cupitt
Nicad/NiMH Battery Charge Controller Senses Temperature Rise February 2011
Guy Burns
PN Junction Acts As Voltage Reference And Noise Source February 2011
Petre Petrov
Wien Bridge Oscillator Uses Zener Stabilisation February 2011
Robert Astridge
PICAXE Version Of Simon Says February 2011
Ian Robertson
PICAXE-Based Data Logger March 2011
Phillip Webb
Sinewave Oscillator Has Low DIstortion March 2011
Alex Sum
Using Transistors To Measure Temperature March 2011
Petre Petrov
PICAXE-Based 48-LED Chaser March 2011
S. Grundy
Mains Timer For Battery Chargers April 2011
Paul Walsh
PIC-Based Square-Wave Generator April 2011
Alex Sum
Chirp Suppressor For A Car Alarm April 2011
Peter Mundy
H-Bridge Circuits For Robotics April 2011
Mike Abrams
LED Light Controller April 2011
Peter Shooter
Electric Guitar/Violin Preamplifier May 2011
Petre Petrov
PICAXE-Based Automatic Multi-Core Tester May 2011
Phillip Webb
Data Logger Based On OpenLog µSD Board May 2011
Terry Simmich
Flexitimer Modification Gives Adjustable On And Off-Delay Settings May 2011
Ken Moxham; Notes/errata: Ref Project EA March 1991
Wireless Doorbell Relay Driver June 2011
Thomas Drage
Microphone Adaptor For A Violin June 2011
Colin Christensen
Diesel Engine Watchdog Circuit Monitors Oil Pressure & Water Temperature June 2011
Merv Thomas
PICAXE-Based Metronome With Accented Beat June 2011
Ian Robertson
Multi-Decade Period-Multiplier For Precision Frequency Comparisons June 2011
Garth F. Jenkinson
Surf Sound Synthesiser July 2011
Craig Kendrick Sellen; Notes/errata: August 2011
Geiger Counter Uses Cockroft-Walton Multiplier July 2011
Dayle Edwards
PICAXEL The Electronic Cricket July 2011
Ian Robertson
Wien Bridge Oscillator Uses An LM386 Power Amplifier July 2011
Petre Petrov
Synthetic 5-Segment Potentiometer July 2011
Jim Rowe
Maximite Stepper Motor Interface August 2011
L. Kerr; Notes/errata: Ref project March-May 2011
Solar Tracking With A Standard Motor Speed Controller August 2011
Herman Nacinovich
Stereo Headphone Adaptor For LCD & Plasma TVs August 2011
Jon Russull
Shunt Regulator For Battery Float Charging August 2011
David Eather
Automatic TOSlink Digital Audio Switcher September 2011
Greg Radion
Temperature Meter Has °C and °F Scales September 2011
Malcolm Sharp
PICAXE Infrared Remote Switch For Decorative LED Light September 2011
Paul Walsh
Phantom Power For The USB Recording Interface September 2011
Jim Rowe; Notes/errata: Ref project June 2011
“Postie” Annunciator Indicates When You Have Mail September 2011
A. J. Lowe
Substitute For AC Motor Reversing Switch October 2011
Michael Azzopardi
Timing Laser For Small 2-Stroke Motors October 2011
Phillip Reynolds
Simple Lithium-Ion Battery Charger October 2011
Graham Jackman
AC Source For Testing Pool Salt Concentration October 2011
Geoff Coppa
Additional Features For The Digital Inclinometer October 2011
Andrew Levido; Notes/errata: Ref project August 2011
Prototyping Board For PICAXE Micros October 2011
Jack Holliday
Mains Timer Has No Stand-By Power October 2011
David Eather
Upgrade For The DIgital Insulation Meter November 2011
Ian Malcolm; Notes/errata: Ref project June 2010
5-Level Logic Probe November 2011
Petre Petrov
Twist-Grip Throttle For The 12/24V 20A Speed Controller November 2011
Clifford Wright; Notes/errata: Ref project June 2011
PICAXE-Based Digital RF Meter November 2011
Jack Holliday
Battery Replacment For An AVO Mk.8 Multimeter November 2011
J. Barry Grumwald
Model Train Controller Uses A PIC And A Full-Bridge Motor Drive IC December 2011
Allan Doust
PICAXE Plant Watering Timer December 2011
Richard Stallard
Remote Control Uses Recycled Wireless Doorbell December 2011
Kevin Ng.
Replacement Horn Circuit For A Car January 2012
Geoff Coppa
Program Variation For Digital Spirit Level January 2012
Andrew Levido
Solar Tracker Employs Two Photo Cells January 2012
Herman Nacinovich
Recycling A Cothes Dryer Timer January 2012
Brian Critchley
Audio-Visual Metronome January 2012
A. J. Lowe
Wide Current-Mode 18-Bit DAC January 2012
Andrew Partrige
PICAXE-Based Traffic Light Sequencer February 2012
Phillip Webb
Electric Fence Tester Uses Xenon Flash Tube February 2012
Herman Nacinovich
Operating Multiple 433MHz UHF Remote Switches February 2012
Geoff Coppa
Quadrature Decoder For Motor Feedback February 2012
Les Kerr
Eye-Level Display For Bathroom Scales February 2012
Poul Kirk
Guitar Practice Amplifier Has Low Quiescent Current February 2012
Petre Petrov
SudoMate For Sudoku Puzzles February 2012
John Western
Rapid Fire Dexterity Game February 2012
Ian Robertson
PICAXE-Based Garage Door Sentinel March 2012
A. Doust
Improvements To The Milliohm Adaptor March 2012
Stuart Wattison; Notes/errata: Ref project February 2010
Measuring Short Intervals With The Maximite March 2012
Jack Holliday; Notes/errata: Ref project March-May 2011
Numeracy Trainer For Young Children March 2012
A. J. Lowe
Using Mosfets For Reverse Polarity Protection April 2012
Nicholas Vinen
Simple Water Level Alarm April 2012
Michael Azzopardi
433MHz Garage Door Position Monitor April 2012
Ian Robertson
12/24V Vehicle Instrument Panel April 2012
Ron Groves
PICAXE 433MHz Transmitter & Receiver May 2012
Phillip Webb
Cheap Electronic Ballast For Fluorescent Light Fittings May 2012
Michael Ong
Air-Compressor Controller For A Sand-Blaster May 2012
Silicon Chip
Motor Protector Uses Missing Pulse Detector May 2012
Geoff Coppa
Maximite-Based Ultrasonic Rangefinder May 2012
jack Holliday
Really Simple Garage Door Monitor June 2012
Robert Hall
Tank Water Level Circuit With Hysteresis June 2012
Peter Robertson
433MHz Remote Lamp Switching June 2012
Geoff Coppa
Optical Tachometer Uses Photo-Interrupter June 2012
Geoff Nicholls
Accurate Clock Uses Maximite And Garmin GPS Module June 2012
Trevor Dalziell
Engine Hours Counter June 2012
Les Kerr
PICAXE-Based Wireless Electricity Monitor July 2012
Phillip webb
A Really SImple Metal Detector July 2012
Mahmood Alimohammadi
Modifying An Urn To Save Power July 2012
Silicon Chip
Capacity Test Circuit For Rechargeable Cells July 2012
David Eather
Checking IF Coil Frequency July 2012
John Russell
PICAXE-Based Mouse Trap Is Non-Lethal August 2012
Phillip Webb
7-Day Programmable Alarm Clock with 230VAC Switching August 2012
Jack Holliday
Recycled PC Power Supplies Deliver 24V August 2012
Alexey Uskov; Notes/errata: September 2012
Serial Cable For Old Compters August 2012
Russell Horswood
Voltage Regulator For Mitsubishi Van August 2012
Geoff Coppa
Simple Sound & Light Alarm September 2012
Petre Petrov
Low-Voltage LED Lighting System Has Remote-Controlled Dimming September 2012
Herman Nacinovich
Bilge Pumper Time Extender September 2012
Dean Brookes
Induction Motor Centrifugal Switch Over-Ride September 2012
Geoff Coppa; Notes/errata: October 2012
Compensated Probe Measures Peak Mains AC Voltage September 2012
Rodger Bean
Simple Metal Locator Uses Overlapping Coils September 2012
Mahmood Alimohammadi
Adjustable Float-Switch Triggered Timer October 2012
Len Cox
Sony IR Remote Decoder Uses Maximite October 2012
Jack Holliday
Bass Sweeping For Subwoofer Testing October 2012
John Russull
Lap Counter For Track Or Pool October 2012
Ian Robertson
Simple AM Radio Uses DIscrete Parts October 2012
Petre Petrov
Programmable RF remote timer/switch November 2012
Jack Holliday
Hard drive activity indicator November 2012
John Rigon; Notes/errata: Ref Multi-Voltage Monitor project May 2006
GSM alarm system uses hard disk as a motion sensor November 2012
Alexey Uskov
Fixed frequency PWM motor speed control November 2012
Michael Azzopardi
Digital Thermostat Features Single-Button User Interface December 2012
Andrew Partridge
PICAXE-Based Roulette Wheel December 2012
Ian Robertson
Electronic Canary needs no Bird Seed December 2012
Craig Sellen
Full Duplex Intercom Using Telephones With Tone Dialling January 2013
John Russull
Simple LED Switch Has Timeout Function January 2013
John Crichton
Simple Variable Dynamic Load For Testing Power Supplies January 2013
Petre Petrov
400Hz 115VAC Sinewave Supply January 2013
Stan Woithe
10Hz-100kHz Function Generator Uses MiniMaximite Display February 2013
Jack Holliday
Rail-To-Rail Power Amplifier For Non-Audio Use February 2013
Nicholas Vinen
Recycling A Floppy Drive For Use As A Mini Polishing Machine February 2013
Alexey Uskov
Residual Current Device (RCD) Tester March 2013
Phillip Webb
Airconditioner Controller For Cars March 2013
John Russull
High & Low Mains Voltage Alarm March 2013
Petre Petrov
Soft Start For 6/12V Toy Car Motors March 2013
Colin O'Donnell
Splash of colour for the regular MaxiMite April 2013
Don Grimble
Serial data transmission over VGA April 2013
David Ward
FM bug detector uses a 7555 as a comparator April 2013
Mahmood Alimohammadi
Dimmer for Christmas light LED strings April 2013
Silicon Chip
1W LED Driver With Protection May 2013
John Clarke; Notes/errata: June 2013
12V Fan Controller With Up To Four Temperature Sensors May 2013
Petre Tzv. Petrov
Serially-Controlled, Expandable 7-Segment Display May 2013
Nicholas Vinen
Simplifying the Ignition Coil Driver June 2013
John Clarke
Metal detector uses a TL074 quad op amp June 2013
Mahmood Alimohammadi
Dual-foldback loudspeaker indicator & protector June 2013
John Clarke
Solar-powered 5W trickle-charger for 12V SLA/LA batteries June 2013
Warwick Talbot
Trailer Light Testing Unit July 2013
Peter Howarth
Audio Breakout Cable For The iPhone July 2013
Bruce Pierson
Setting A Real Time Clock With GPS Time July 2013
David Worboys
Keypad & LCD for MiniMaximite August 2013
Jack Holliday
Pre-regulator For A Precision Voltage Reference August 2013
Andrew Partridge
Bar & Dot Display With BCD Decoders August 2013
Petre Petrov
Extendable Mixer Circuit August 2013
Christopher Ross
MiniMaximite Version of the 10-Channel Remote Control Receiver September 2013
Jack Holliday
UV Light Box & Timer with LED Array September 2013
Ian Robertson
Arduino Temperature & Humidity Data Logger September 2013
Jed Hodson
Door sentry uses encoded infrared beam October 2013
Ian Robertson
Energy Measurement Using the USB Power Monitor October 2013
Nicholas Vinen
PIC-based noisemaker circuit for electric wheelchairs & electric scooters October 2013
Peter Reed
24-Hour Mode For Nixie Clock November 2013
Dennies Mulheron
Intelligent Drill Battery Charger November 2013
Jack Holliday
Fail-Safe Starter For Induction Motor Speed Controller November 2013
Peter Clarke
Simple 2-coil VLF metal detector December 2013
Mahmood Alimohammadi
USB keyboard emulation for a microprocessor December 2013
Pete Mundy
Revised firmware for the USB MIDI-Mate project December 2013
Jim Rowe
A new home for an Apple MacBook power adaptor December 2013
John Clarke
X-Y test pattern generator for analog scopes December 2013
Hugo Holden
Pseudo-Random Timer For A Bird Scarer January 2014
Merv Thomas
Universal Numeric Display For Controllers Running Maximite Basic January 2014
Jack Holliday
Door Minder Senses Air Pressure & Plays A Tune January 2014
Ian Robertson
Audio decibel meter uses logarithmic converter February 2014
Malcolm Sharp
PICAXE-based garage door controller February 2014
Ian Robertson
Minimum speed adjustment for Induction Motor Speed Controller February 2014
Peter Clarke
Cheap USB-powered PCB drill February 2014
John Russull
Adapting An Arduino LCD Shield For The MiniMaximite March 2014
Jack Holliday
Atmel Microcontroller Drives An Arduino OLED Display March 2014
Jed Hodson
Versatile Timer Is Based On A Single Chip March 2014
Michael Azzopardi
Last Digit Bobble Fix For The 12-Digit Frequency Counter March 2014
Graham Lill
PICAXE-based music box or doorbell April 2014
Bill McKinley
2-cell lithium-polymer charger has balancing feature April 2014
Robert Budniak
3-decade timebase period divider April 2014
Jim Rowe
Demonstration of LED spectra May 2014
James Goding
Battery capacity meter for electric bikes May 2014
George Mackiewicz
Modified SiDRADIO Has Exceptional Performance June 2014
Clifford Wright, ZL1BDA
Micromite Clock Uses Analog Meters For The Time Display June 2014
John Gerrard
Arduino-Compatible Alarm Clock Has Large LED Dot Matrix Display June 2014
Jed Hodson
Signal Injector And Tracer Uses TDA2822M Dual Power Amplifier July 2014
Petre Petrov
RS232 Input For Non-Standard Signals July 2014
Robert H. Bennett
Headlight Circuit For A 36V Electric Bike July 2014
John Clarke
Simple DIY Gizmos For SMD Desoldering July 2014
Jim Rowe
Temperature Control With A Fridge/Freezer Thermometer August 2014
John Russull
RS232-to-TTL Serial Interface For The Micromite August 2014
Jack Holliday
Simplified 10V Precision Voltage Reference August 2014
Jim Rowe
Simple Measurement Of Capacitor Leakage Resistance August 2014
Alan Wilson
Telephone Status Indicator Uses Two Optocouplers August 2014
Mark O'Farrell
Micromite-based controller for 230VAC LED downlights September 2014
Dan Amos
Measuring the frequency output of the Induction Motor Speed Controller September 2014
Leo Simpson
PICAXE-based bistro paging system October 2014
Ian Robertson
Micromite GPS dual clock with 7-day alarm October 2014
Jack Holliday
Thermocouple-based thermostat with temperature display & proportional phase control November 2014
John Russull
20-LED moving dot temperature display November 2014
Mahmood Alimohammadi
MEN Hazard Warning Alarm December 2014
Dr Hugo Holden
Forward/reverse Drive For DVD Brushless DC Motors December 2014
Les Kerr
Suppressed Zero Meter Using A Zener Diode December 2014
David Francis
Using a Micromite to control a PCF8563 real-time clock January 2015
Jack Holliday
Engine immobiliser uses RFID tag January 2015
Ron Groves
4-digit thermometer January 2015
Mahmood Alimohammadi
USB OTG charging cable January 2015
Don Amos
Remote doorbell for video door-phone system February 2015
Michael Azzopardi
PICAXE-based electronic code lock February 2015
Ian Robertson
Simple dual gate controller February 2015
Merv Thomas
Controlling the speed of a centrifugal switch induction motor February 2015
Ian Thompson
Remote sensing & controlling a Micromite with HC05 Bluetooth modules March 2015
Jack Holliday
Poor man's mains voltage scope monitor March 2015
Peter Kay
5 x 5 switch matrix for the Micromite March 2015
John Sheldrake
Hard drive brushless motor controller with speed control April 2015
Les Kerr
Lithium battery cell equaliser April 2015
David Francis
PICAXE-based next number display system April 2015
Ian Robertson
Arduino-based learning IR remote with LCD touch-screen May 2015
Phillip Webb
Firmware update for the 12-Digit 2.5GHz Frequency Counter May 2015
Kit(s): www.siliconchip.com.au/Shop/6/1038
Jim Rowe
A modern version of the Ping-Pong game May 2015
Mahmood Alimohammadi
Wireless door chime repeater June 2015
Roger Forsey
High-side Mosfet switch with optocoupler control June 2015
Gregory Freeman
Low ohms meter has LCD June 2015
Les Kerr
4-channel IR remote switch with toggle and latch modes July 2015
Mahmood Alimohammadi
Temperature-controlled solar hot water tank July 2015
David Francis
Hazard lights & turn signals for a tractor July 2015
Peter Howarth
PICAXE-based mains timer August 2015
Ian Robertson
Simple solar charge regulator for campers August 2015
David Francis
Simple switchmode LED flasher August 2015
Silicon Chip
Benchtop ignitor for oxy-acetylene welding September 2015
Peter Shooter
Efficient linear multi-voltage regulator September 2015
Nicholas Vinen
UHF-switched GPS guidance system October 2015
Peter Howarth
24-pattern LED chaser display October 2015
Mahmood Alimohammadi
4-speed gear indicator uses a single 7-segment LED display November 2015
Charles Tivendale
Sidereal clock uses Arduino flight controller and display modules November 2015
Alan Cashin
A 3-channel data-logger with OLED display November 2015
Jed Hodgson
Attenuator for active probe unit November 2015
Jim Rowe
LED light curtain stops garage door damage to cars December 2015
Alan Chamberlain
Simple circuit modulates LEDs to music December 2015
Owen Winter
Celsius/fahrenheit digital thermometer with alarm December 2015
Mahmood Alimohammadi
USB Power Injector January 2016
John Clarke, SILICON CHIP
Bidirectional interface January 2016
Nicholas Vinen, SILICON CHIP
Audio generator has square and triangle wavefoms January 2016
John Clarke, SILICON CHIP
Digitally-controlled audio preamplifier with four stereo inputs February 2016
Nicholas Vinen
Low voltage warning for a lithium cell February 2016
John Clarke
Combined games timer & electronic dice February 2016
Ian Robertson
Hot-Wire Cutter With PICAXE Heat Controller March 2016
Ian Robertson
Adjustable Current Sink for Valve Biasing March 2016
Herman Nacinovich
Soldering Iron Timer March 2016
Charles Tivendale
Improved AM Detector Has Low Distortion March 2016
Hugo Holden
Mobile phone ring extender with pager April 2016
Ian Robertson
USB power injector April 2016
John Clarke
4-digit code lock uses Atmel micro April 2016
Mahmood Alimohammadi
Third hand for soldering tiny surface mount devices April 2016
Ian Hawke
Micromite-based stove left on reminder May 2016
Michael Ogden
Relay circuit for cars with hydraulic brake switches May 2016
Dave Dobeson
Test & label those plugpacks May 2016
Leo Simpson
Isolated line connection for laptop to amplifier May 2016
Ross Weir
ESR meter with LCD readout May 2016
Les Kerr
Wireless rain alarm June 2016
Ian Robertson
Improved amplitude modulator June 2016
Hugo Holden
12.5MHz touch-screen function generator June 2016
Dan Amos
Combined timer, counter & frequency meter June 2016
Mahmood Alimohammadi
Increased life for daytime running lights July 2016
Lee Bourgious
Speedometer driving circuits July 2016
John Clarke
Precision resistance matching bridge July 2016
Andrew Johnson
Turntable mods to lift tonearm on power cut July 2016
Gavin Krautz
Arduino-based Analog & Digital LCD Clock August 2016
Somnath Bera
Simple Li-Ion Cell Charger August 2016
Phillip Webb
Auto-ranging 10µA to 10A Current Meter August 2016
Les Kerr
PICAXE-based bipolar transistor tester September 2016
Ian Robertson
dsPIC/PIC programmer improvements September 2016
Len Cox
Ultra-low-power, long-range Arduino communications September 2016
Somnath Bera
Dual-switch relay control logic using LEDs October 2016
Julian Sortland
Improvement to ducted home vacuum system October 2016
Roger Forsey
Micromite Mk2 Breadboard Adaptor October 2016
Gianni Pallotti
Decoding Samsung & NEC remote control codes with BASCOM October 2016
Mahmood Alimohammadi
Clap-on/clap-off switch October 2016
Barrie Davis
Simple split supply generator November 2016
Nicholas Vinen
Precision switched capacitor DAC needs no precision components November 2016
Andrew Partridge
PICAXE-based data logger November 2016
George Mackiewicz
PWM-based temperature-controlled fan December 2016
Mahmood Alimohammadi
Automatic speaker switching between two power amplifiers December 2016
Peter Clarke
WiFi Christmas light controller December 2016
Phillip Webb
Level shifter/inverter for back-EMF sensing December 2016
Nicholas Vinen
LoRa remote repeater for ultra-long range digital communications January 2017
Somnath Bera
Two serial multiplexers January 2017
George Ramsay
Improved PICAXE Wireless Rain Alarm January 2017
Ian Robertson
Simple Motion Detection Alarm February 2017
Colin O’Donnell
“Squash” and “Ping-Pong” two-player games using 16 LEDs February 2017
Mahmood Alimohammadi
Using GPS Modules for surveying and distance measurement February 2017
Bera Somnath
Signal Generator Buffer for testing stereo and bridged amplifiers February 2017
Petre Petrov
ATmega-based Metal Detector with stepped frequency indication March 2017
Mahmood Alimohammadi
Remote Tell-Tale Indicator for garage doors March 2017
Ian Robertson
Reduced noise for Isolated Current Probe March 2017
Ray Miller
Two modifications to the Battery LifeSaver April 2017
Nicholas Vinen
Measuring weight using Arduino April 2017
Bera Somnath
Simple bird scarer stops tree damage April 2017
Roderick Wall
Using the GPS Analog Clock as a 1pps signal source May 2017
Nicholas Vinen
Atmel-based digital clock and stopwatch May 2017
Mahmood Alimohammadi
Using a CAN bus to monitor individual solar panels May 2017
Bera Somnath
Low power switched capacitor DC/DC Converter for rechargeable batteries June 2017
Petre Petrov
PICAXE-based Dual Temperature Datalogger June 2017
David Worboys
Arduino 3D Printer Heat Bed Controller June 2017
Pete Mundy
Remote water level monitoring using LoRa and Arduino July 2017
Bera Somnath
Wien Bridge Oscillator delivers high power July 2017
Petre Petrov
Simple constant speed controller for permanent magnet DC motors July 2017
Mauri Lampi
12V DC Cyclic Pump Timer July 2017
Richard Blyton
Raspberry Pi Elevator Display & Annunciator August 2017
Bera Somnath
Distributed temperature sensing using an ATmega8 and DS18B20 sensors August 2017
Mahmood Alimohammadi
Automatically rebooting NBN modem September 2017
Les Kerr
Using a VL53L0X laser rangefinder module with Arduino September 2017
Bera Somnath
Level shifting the output of the High-Temperature Digital Thermometer September 2017
John Clarke
Modifications to Mains Power Supply for Battery Valve Radio Sets October 2017
Ian Robertson
Recalibrating the oscillator in a PIC12F675 or PIC12F629 October 2017
John Clarke
Bipolar transistor tester, Mk2 October 2017
Ian Robertson
Using a 5-inch touchscreen with the Micromite Plus Explore 64 October 2017
Ted Price
PICAXE-based Chess/Games Timer November 2017
Ian Robertson
Caravan water tank level meter tracks water usage November 2017
Alfred Hirzel
High power H-bridge uses discrete Mosfets November 2017
Gianni Pallotti
Four-channel RF wireless remote control has three different modes November 2017
Mahmood Alimohammadi
Four quadrant power supply is based on high voltage op amp December 2017
Petre Petrov
Micromite-based Air Conditioner Remote Control December 2017
Gianni & Charmaine Pallotti
Precision Fridge Door Alarm January 2018
Peter Shooter
Debugging a failing electric motor with an RPM and temperature data logger January 2018
Bera Somnath
Op amp antenna preamplifier January 2018
Petre Petrov
Vintage car logbook reminder with temperature and clock display February 2018
Clive Allan
PICAXE roulette wheel simulator using 7-segment displays February 2018
Ian Robertson
Active probe uses switched capacitor charge pump February 2018
Petre Petrov
OLED clock gets its time from the internet using NTP February 2018
Bera Somnath
Drift-free Induction Balance Metal Detector March 2018
Mahmood Alimohammadi
Colour slideshow with alarm clock using an ESP32 March 2018
Bera Somnath
Temperature and humidity display using a PIC16F88 April 2018
Les Kerr
Electric Guitar/Violin preamp runs off USB supply April 2018
Petre Petrov
Recycling old hard disk spindle motors April 2018
Dennis Smith
Simple Valve Radio Battery Eliminator April 2018
Charles Kosina
20V, 2.5A Adjustable Power Supply with current limiting May 2018
Gianni Pallotti
Personal Speedometer for jogging May 2018
Bera Somnath
Sunset Switch to discourage possums May 2018
Jon Kirkwood
Adjustable low-pass filter May 2018
Petre Petrov
Atari Punk Console 4-16 step synthesiser/sequencer June 2018
Dre West
Low-cost Automotive Ammeter June 2018
John Russull
Use your phone to capture glitches on a scope June 2018
Geoff Cohen
PICAXE-based Millisecond Reaction Timer June 2018
Ian Robertson
Servomotor tester June 2018
George Ramsay
Humidity Controller for Cheesemaking July 2018
Tony Verberne
Multi-pattern, multi-speed LED chaser July 2018
Mohammad Moridi
Using two cheap ICs to generate ±15V DC from 5V DC July 2018
Petre Petrov
LED logic display for circuit development July 2018
Gianni Pallotti
GPS or WiFi (NTP) clock using a PIC and an LCD screen August 2018
Les Kerr
36/48V 50A Charger Controller for golf carts etc August 2018
Silicon Chip
Measuring air pollution with an ESP32 August 2018
Bera Somnath
Dual high-power sinewave generator August 2018
Petre Petrov
DIY magnetic connectors August 2018
Geoff Cohen
Guitar preamp with JFETs to emulate valve sound September 2018
Graham Bowman
The Coober Pedy Opal Miner Game September 2018
Ian Robertson
Empty tank warning indicator September 2018
Colin O'Donnell
Arduino (ESP32) Talking Clock October 2018
Bera Somnath
Data Logger using Micromite Plus Explore 64 October 2018
Neil Cox
Eight-button Quiz Master system October 2018
Ian Robertson
Switchmode solar battery charger with sunset switch October 2018
Colin O'Donnell
Dual mode digital dice November 2018
Mahmood Alimohammadi
Super-simple headlight-on reminder November 2018
Warren Goninan
Simple mains soft starter November 2018
Warwick Talbot
Freezer temperature monitor and alarm November 2018
David Worboys
Satellite TV polarisation indicator November 2018
Luke Staudinger
Simple guitar practice amp December 2018
Petre Petrov
Accurately measuring voltage and current at the same time December 2018
Rodger Bean
1kHz crystal-locked sinewave oscillator December 2018
Michael Harvey
Using a stepper motor for star tracking with a telescope January 2019
Graham Jackman
Switchable AC voltage source with unregulated DC supply January 2019
Peter Moore
Using a touch-tone telephone to send coded radio signals January 2019
Warwick Talbot
Flashing LEDs in time to music January 2019
Nigel Quayle
Making a cheap WiFi-controlled relay board work February 2019
Bera Somnath
Modular quiz buzzer system February 2019
Ian Robertson
Four-channel sound system using a single woofer February 2019
John Russull
Crystal set uses an electret microphone as a detector February 2019
Andrew Russell
AVR-based inductance/capacitance/frequency meter March 2019
Mahmood Alimohammadi
Micromite-based colour organ March 2019
Dan Amos
6V SLA automatic switchmode solar charger March 2019
Noel Rios
Simple zener diode tester fits inside a DMM April 2019
Colin O'Donnell
Automatic sleep timer for TVs April 2019
Eric Richards
Battery-powered Steam Train Whistle May 2019
Les Kerr
Switching cooling fan based on power supply load May 2019
Trevor Vieritz
ESP32 Internet Radio Receiver May 2019
Bera Somnath
Touchscreen clock radio using a Micromite BackPack June 2019
Dan Amos
Two micros control an aircon with a single real-time clock module June 2019
Bera Somnath
Diode/transistor/Mosfet tester June 2019
Gianni Pallotti
Guitar practice preamplifier based on inverters July 2019
Petre Petrov
74LS- and 74HC-series logic IC tester July 2019
Noel Rios
Electrocardiogram (ECG) based on a Micromite Explore 100 July 2019
Neil Cox
Horse racing game July 2019
Mahmood Alimohammadi
PICAXE “Knight Rider” LED chaser display August 2019
Ian Robertson
Voice modulator for sound effects August 2019
Warwick Talbot
Arduino LoRa chat terminal with QWERTY keyboard August 2019
Bera Somnath
Phantom-powered microphone over telephone cables August 2019
John Crowhurst
AM radio distribution amplifier August 2019
Petre Petrov
High-frequency adjustable LED strobe September 2019
Graham Jackman
Top octave generator using AVR micro September 2019
Alan Cashin
Formula 1 starting lights for slot cars September 2019
Martin Walker
Six-decade resistor sorter September 2019
Ian Robertson
Phone call speech time warning (sales booster) September 2019
Phil Cohen
Three Norton (current feedback) amp based sinewave oscillators October 2019
Mauri Lampi
Amplifying audio signals using a MAX232CPE October 2019
Ariel G. Benvenuto
Multiple DS18B20 temperature sensors on a single, long wire October 2019
Bera Somnath
Loudspeaker thump suppressor October 2019
Andrew Kollosche
Simple digital sinewave generator November 2019
Les Kerr
Shunt regulator for wind turbines November 2019
Herman Nacinovich
Digital soldering iron stepping timer November 2019
Ian Robertson
"The Farmer's Friend" - discrete pump timer November 2019
James Goding
Dot-matrix scrolling text display December 2019
Mahmood Alimohammadi
Hearing loop amplifier for Android phones December 2019
Peter Parker
Discrete switching LED driver December 2019
Phil Prosser
Low-voltage 3-phase Induction Motor Speed Controller December 2019
John Russull
3.2MHz reference derived from 10MHz January 2020
Charles Kosina
Micromite Mk2 dev board with Microbridge January 2020
Gianni Pallotti
20W instrument practice amplifier January 2020
Petre Petrov
Metered variable power supply uses inexpensive modules February 2020
Bob Martindale
Two 100Mbit Ethernet connections over a single Cat6 cable February 2020
Roderick Wall
In-situ Ethernet cable tester February 2020
Phillip Webb
Signal generator output booster using an LM1877 February 2020
Petre Petrov
Low-noise split supply and switched gain signal amplifier March 2020
Petre Petrov
Combining DDS and IF alignment circuits March 2020
Ross Herbert
Resurrecting a turntable with a Micromite Explore 64 March 2020
Peter Bennett
Multi-code lock with 10 access codes April 2020
Mahmood Alimohammadi
Micromite-based Chiming Clock April 2020
Ray Saegenschnitter
Two-wheel self-balancing robot April 2020
Bera Somnath
Self-resetting intruder alarm April 2020
Raj. K. Gorkhali
3-output power supply using plugpacks May 2020
Petre Petrov
Variable speed discrete reversing LED chaser May 2020
Bob Martindale
Proximity warning for the blind May 2020
Bera Somnath
Simple "emergency" charger for small batteries May 2020
Tim Blythman
Efficiently converting 12V AC/DC to 24V, 5V and 3.3V June 2020
Petre Petrov
Simple I²C serial bus snooper June 2020
John Nestor
Frequency divider with a 50% duty cycle output June 2020
Ariel G. Benvenuto
Novel method of GPS-locking an oscillator July 2020
Alan Cashin
USB privacy dongle emulates keyboard July 2020
Nigel Quayle
Running Micropython on an ESP32/ESP8266 July 2020
Sid Lonsdale
Multiple output -5 to 12V DC supply July 2020
Petre Petrov
Digital soldering iron timer with relay July 2020
Ian Robertson
Four USB power supplies from a laptop charger August 2020
Petre Petrov
Modifying the Ultra-LD Mk.2 to drive a hearing loop August 2020
Anthony Leo
Preamplifier power supply runs from 5V DC August 2020
Bob Temple
Heelometer (heel meter) for Boats August 2020
Geoff Champion
Altitude readout for the Boat Computer August 2020
Tim Blythman
Low-power flashing LED thermometer September 2020
Benabadji Mohammed Salim
Adjustable power supply using a fixed voltage switchmode regulator September 2020
Petre Petrov
Giant 1024-pixel RGB LED Clock September 2020
Bera Somnath
Automatic solar panel checker October 2020
Dennis Stanley
Touch-switch using a 4011B IC October 2020
Raj. K. Gorkhali
Induction headphones for hearing aid users October 2020
Anthony Leo
An NTP clock that works anywhere October 2020
John Nestor
Automatic hand sanitiser dispenser November 2020
Bera Somnath
Wellbeing monitor November 2020
Phillip Webb
Boat Computer modified for 4WDs November 2020
Greg Hoyes
More modified Boat Computer software November 2020
Ray Saegenschnitter
Automated tyre inflator/deflator December 2020
Tom Croft
Infinite impedance AC source December 2020
Mauri Lampi
Controlling model railway points with a servo December 2020
George Ramsay
A reliable solar lighting system January 2021
K. G.
Converting a cheap welder to a high-current battery charger January 2021
John Russull
Radiating test antenna for AM radios January 2021
Ian Batty
LCD clock and thermometer February 2021
Mahmood Alimohammadi
DIY laser rangefinder February 2021
Bera Somnath
Animal and pest repeller February 2021
Warwick Talbot
Stable multi-frequency sinewave generator February 2021
Petre Petrov
WiFi Snooping with a Raspberry Pi February 2021
Sid Lonsdale
Low-noise microphone preamp March 2021
Petre Petrov
Two quartz crystal oscillators using a flip-flop March 2021
Ariel G. Benvenuto
Displaying digits using single RGB LEDs March 2021
Benabadji Mohammed Salim
The Omnidetector March 2021
Rev. Thomas Scarborough
Biofeedback for stress management April 2021
David Strong
Alternative switched attenuator for Shirt Pocket Oscillator SC 01110201 April 2021
Rick Arden; Kit(s): SC5622
Latching output for Remote Monitoring Station SC 27111191 April 2021
Geoff Coppa
Follow-up to 'constant' AC source April 2021
Mauri Lampi
Revised "GPS" Analog Clock for NTP module SC 04202171 May 2021
Graeme Dennes
Simple DMM calibrator May 2021
Colin O'Donnell
Infrared remote control jammer May 2021
Geoff Coppa
Building a better mousetrap June 2021
Bruce Boardman, VK4MQ
In & out of circuit LED tester June 2021
Graham P. Jackman
Coded door buzzer July 2021
Benabadji Mohammed Salim
Adding shuffle feature to low-cost MP3 player module July 2021
Les Kerr
DIY pulse oximeter July 2021
Bera Somnath
Portable amplifier built from modules August 2021
Sid Lonsdale
Frequency meter with non-contact mains reading August 2021
Mahmood Alimohammadi
Multiple RAM banks for the IR Remote Control Assistant September 2021
Robbie Adams
Solar garden light uses supercapacitor September 2021
Bera Somnath
1-2-5 switching arrangements September 2021
Barry Moore
Simple tripwire alarm September 2021
Thomas Scarborough
Letterbox counter September 2021
Raj. K. Gorkhali
Colour recognition using LEDs and an LDR October 2021
Les Kerr
Battery charger with WiFi interface October 2021
Phillip Webb
Modifying Micromite software to use a 3.5in display November 2021
Tim Blythman
Voice-operated and proximity lift controls November 2021
Bera Somnath
Orrery (planetarium) using a Micromite LCD BackPack December 2021
Kenneth Horton
Non-contact cloud-based temperature sensor with speech December 2021
Bera Somnath
Switching cells between parallel and series December 2021
Benabadji Mohammed Salim
Connecting two pushbuttons to an input-only pin December 2021
Amine Houari
Conway's Game of Life on the Micromite January 2022
Kenneth Horton
Alternative PCB joiner for Linear MIDI Keyboard SC 23101214 January 2022
Tim Blythman
Compact reed relay module January 2022
Gianni Pallotti
Resistor-Mite auto-ranging ohmmeter February 2022
Gianni Pallotti
Using a capacitive soil moisture meter February 2022
Kenneth Horton
Musical bicycle horn February 2022
Jotham Gates
An alternative version of the Arduino Power Supply March 2022
Stephen Gordon
Reading three digital signals with a two-channel oscilloscope March 2022
John Rich
Illuminated doorbell press switch circuit March 2022
David Worboys
Very simple adjustable electronic load April 2022
Jon Kirkwood
Three reaction time games April 2022
Mahmood Alimohammadi
NBN backup battery April 2022
Robert Budniak
A useful wireless charger May 2022
John Russull
Simple stereo microphone May 2022
Thomas Scarborough
Lithium-ion battery reconditioner May 2022
Dan Amos
Motion-triggered ESP32-based WiFi camera captures intruders May 2022
Bera Somnath
RF burst power meter June 2022
George Mackiewicz
Artificial candle is ‘ignited’ by a real flame June 2022
Aarav Garg
Digital volume control using discrete logic June 2022
John Clarke & Raj. K. Gorkhali
An easy way to measure SMDs June 2022
Michael Harvey
Switching on external devices via your TV July 2022
Warwick Talbot
Variable L-Pad volume control for loudspeakers July 2022
Peter H. Lehmann
Transmitting in the FM broadcast band with the MC2833 NBFM chip July 2022
Ariel G. Benvenuto
Simple plugpack voltage & current monitor July 2022
John Louttit
Simple mains timer/LED lamp dimmer August 2022
Hichem Benabadji
Hearing Loop (telecoil) phone headset August 2022
Anthony Leo
Smoke, alcohol or LPG alarm August 2022
Raj K. Gorkhali
Simple USB power delay timer September 2022
Graeme Grieve
Using a PICAXE as an Arduino co-processor September 2022
David Worboys
ST7920 LCD driver for PIC32MZ projects October 2022
Stephen Gordon
Simple EEPROM programmer/Wireless Digital FX Pedal control October 2022
Tamsin Bromley
Galvanic Skin Response for stress management October 2022
David Strong
Digitally controlled preamp with tone controls November 2022
Noel A. Rios
ESP32-Camera sentry with object detection via TensorFlow November 2022
Bera Somnath, co-author: Sh S K Swain / Lara
mmPi add-on for Raspberry Pi December 2022
Michael Ogden
Two different positive DC outputs from a centre-tapped transformer December 2022
Mark Hallinan
Traverser for photography or model railway December 2022
Graham P. Jackman
Noughts & Crosses game using just two modules January 2023
Keith Anderson
MIDI Toolbox January 2023
Dan Amos
Light with automatic switch-off February 2023
Raj. K. Gorkhali
Automatic mouse clicker February 2023
Tim Blythman
Frequency comparator using discrete logic February 2023
Ariel G. Benvenuto
Skylight Controller February 2023
Geoff Coppa
Regenerative BFO (beat frequency oscillator) metal detector March 2023
Thomas Scarborough
3D-printed Robotic Arm March 2023
Aarav Garg
Lithium battery & case for Uno with touchscreen April 2023
Keith Anderson
Three-phase sinewave generator April 2023
Mauri Lampi
Graph makes using the Q Meter easier April 2023
Andrew Woodfield
Low-cost cell under-voltage protection April 2023
Salim Benabadji
ESP32-based millisecond clock April 2023
Bera Somnath
An even more flexible Flexitimer May 2023
Chris Sweet
Simple emergency light uses tool batteries May 2023
Winston Campbell
Jaycar TS1440 soldering stand adaptor May 2023
Keith Anderson
Multiprocessor stack and terminal switch using Pi Picos May 2023
Mike Sunners
Minimalist Carbon Monoxide (CO) detector June 2023
Hichem Benabadji
DCC Block Train Detector June 2023
Tim Blythman
Cupboard light June 2023
Raj. K. Gorkhali
3D-printed case for Advanced Test Tweezers June 2023
Geoff Cohen
Object recognition with Arduino and ESP32 CAM July 2023
Bera Somnath
Charging a battery with a load July 2023
Tim Blythman, Silicon Chip
Reducing Flexitimer power consumption July 2023
Chris Sweet
dsPIC-based Audio Spectrum Analyser August 2023
Noel A. Rios
USB Power Board is just a PCB August 2023
Brandon Speedie
3D-printed and laser-cut cases for the Advanced Test Tweezers August 2023
Richard Palmer
‘Huygens Beam’ beat frequency oscillator (BFO) metal detector September 2023
Thomas O. Scarborough
Updated MPPT Solar Charger September 2023
Phil Nicolson
Audio Level Meter September 2023
Graham Bowman
Mini inverter to power a soldering iron October 2023
Raj. K. Gorkhali
Improved gesture recognition software October 2023
Kenneth Horton
Raspberry Pi Pico W Backpack 'analog' clock October 2023
Dennis Smith
Automatic AI Doorman using a Maixduino October 2023
Bera Somnath
A minimal WiFi water tank level gauge November 2023
Mohammed Salim Benabadji
Magnetic levitation demonstration SC levitation November 2023
Les Kerr
Discrete microamp LED flasher SC LED_Flasher_1uA_V2 November 2023
Russell Gurrin
Wireless power transfer demonstration December 2023
Les Kerr
Significant Spectral Sound MIDI Synthesiser software update December 2023
Jeremy Leach
Battery-powered timer December 2023
Gianni Pallotti
ePaper clock and calendar January 2024
Bera Somnath
Semiconductor curve tracer January 2024
Phillip Webb
Latching relay toggle circuit February 2024
G. G.
DHT22-based temperature/humidity chart display February 2024
Ray Saegenschnitter
Isolated mains voltage and current monitor February 2024
Mark Hallinan
ESP32-based AI ChatGPT terminal February 2024
Bera Somnath
WiFi Night Light using a simple circuit February 2024
Phillip Webb
LED-based motion sensor February 2024
Thomas O. Scarborough
Arduino-based water pump monitor March 2024
Alfred Hirzel
Battery Lifesaver with load control March 2024
David Worboys
Ultra-low-power carbon monoxide (CO) monitor March 2024
Mohammed Salim Benabadji
Temperature controller for humidicrib April 2024
Rowan Wigmore
Experimenting with LoRa mesh networking April 2024
Bera Somnath
Double-sideband (DSB) / AM phase-shift modulator May 2024
Ariel G. Benvenuto
Replacement switchmode power supply for an oscilloscope May 2024
Mauri Lampi
USB-serial data interceptor June 2024
Tim Blythman
Quick NPN/PNP transistor tester June 2024
Raj K. Gorkhali
Arduino bin reminder June 2024
Geoff Coppa
Programming a Micromite over Bluetooth June 2024
Grant Muir
JFET-based Guitar Preamplifier July 2024
Graham Bowman
Op amp based push-pull PWM Mosfet driver July 2024
Mauri Lampi
Reading a BCD switch using one micro pin August 2024
Geoffrey Younger
Op amp based Guitar Equaliser August 2024
Graham Bowman
Tunnel timer for model railways August 2024
Les Kerr
Dashcam power control September 2024
George Mackiewicz
Electronically-controlled ball maze game September 2024
Gianni Pallotti
Three-phase sinewave generator with TL074s October 2024
Allan Grant
Micromite Plus Explore 100-based Reflow Oven Controller October 2024
Ian Thompson
Supercap Boost Starter for Vehicles October 2024
John Russull
GPS caravan clock and power monitor October 2024
Dennis Smith
Using a common IC to generate a negative rail November 2024
Michael Harvey
Tunnel timer uses 555 instead of a microcontroller November 2024
John Clarke
Model train rail blockage detector November 2024
Graham P. Jackman
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24/11/2024
