Silicon ChipBack Issues - February 1991 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Extolling the virtues of fluorescent lights
  4. Feature: Electric Vehicles; Pt.2 by Gerry Nolan
  5. Feature: A Practical Approach To Amplifier Design by David Eather
  6. Project: A Synthesised Stereo AM Tuner, Pt.1 by John Clarke & Greg Swain
  7. Feature: Computer Bits by Jennifer Bonnitcha
  8. Vintage Radio: One thing leads to another by John Hill
  9. Project: Three Inverters For Fluorescent Lights by Otto Priboj
  10. Project: Build A Low-Cost Sinewave Oscillator by Darren Yates
  11. Back Issues
  12. Project: Fast Charger For Nicad Batteries; Pt.2 by John Clarke & Greg Swain
  13. Serviceman's Log: Now look what ya gorn an' done! by The TV Serviceman
  14. Feature: Remote Control by Bob Young
  15. Feature: Amateur Radio by Garry Cratt, VK2YBX
  16. Feature: The Story Of Electrical Energy; Pt.8 by Bryan Maher
  17. Order Form
  18. Market Centre
  19. Advertising Index
  20. Outer Back Cover

This is only a preview of the February 1991 issue of Silicon Chip.

You can view 47 of the 104 pages in the full issue, including the advertisments.

For full access, purchase the issue for $10.00 or subscribe for access to the latest issues.

Articles in this series:
  • Electric Vehicles: The State Of The Art (January 1991)
  • Electric Vehicles; Pt.2 (February 1991)
  • Electric Vehicles; Pt.3 (March 1991)
  • The World Solar Challenge (April 1991)
  • Motors For Electric Vehicles (May 1991)
  • Electric Vehicle Transmission Options (June 1991)
Articles in this series:
  • A Practical Approach To Amplifier Design (February 1991)
  • A Practical Approach To Amplifier Design; Pt.2 (April 1991)
Articles in this series:
  • A Synthesised Stereo AM Tuner, Pt.1 (February 1991)
  • A Synthesised Stereo AM Tuner, Pt.2 (March 1991)
  • A Synthesised Stereo AM Tuner, Pt.3 (April 1991)
Articles in this series:
  • Computer Bits (July 1989)
  • Computer Bits (August 1989)
  • Computer Bits (September 1989)
  • Computer Bits (October 1989)
  • Computer Bits (November 1989)
  • Computer Bits (January 1990)
  • Computer Bits (April 1990)
  • Computer Bits (October 1990)
  • Computer Bits (November 1990)
  • Computer Bits (December 1990)
  • Computer Bits (January 1991)
  • Computer Bits (February 1991)
  • Computer Bits (March 1991)
  • Computer Bits (April 1991)
  • Computer Bits (May 1991)
  • Computer Bits (June 1991)
  • Computer Bits (July 1991)
  • Computer Bits (August 1991)
  • Computer Bits (September 1991)
  • Computer Bits (October 1991)
  • Computer Bits (November 1991)
  • Computer Bits (December 1991)
  • Computer Bits (January 1992)
  • Computer Bits (February 1992)
  • Computer Bits (March 1992)
  • Computer Bits (May 1992)
  • Computer Bits (June 1992)
  • Computer Bits (July 1992)
  • Computer Bits (September 1992)
  • Computer Bits (October 1992)
  • Computer Bits (November 1992)
  • Computer Bits (December 1992)
  • Computer Bits (February 1993)
  • Computer Bits (April 1993)
  • Computer Bits (May 1993)
  • Computer Bits (June 1993)
  • Computer Bits (October 1993)
  • Computer Bits (March 1994)
  • Computer Bits (May 1994)
  • Computer Bits (June 1994)
  • Computer Bits (July 1994)
  • Computer Bits (October 1994)
  • Computer Bits (November 1994)
  • Computer Bits (December 1994)
  • Computer Bits (January 1995)
  • Computer Bits (February 1995)
  • Computer Bits (March 1995)
  • Computer Bits (April 1995)
  • CMOS Memory Settings - What To Do When The Battery Goes Flat (May 1995)
  • Computer Bits (July 1995)
  • Computer Bits (September 1995)
  • Computer Bits: Connecting To The Internet With WIndows 95 (October 1995)
  • Computer Bits (December 1995)
  • Computer Bits (January 1996)
  • Computer Bits (February 1996)
  • Computer Bits (March 1996)
  • Computer Bits (May 1996)
  • Computer Bits (June 1996)
  • Computer Bits (July 1996)
  • Computer Bits (August 1996)
  • Computer Bits (January 1997)
  • Computer Bits (April 1997)
  • Windows 95: The Hardware That's Required (May 1997)
  • Turning Up Your Hard Disc Drive (June 1997)
  • Computer Bits (July 1997)
  • Computer Bits: The Ins & Outs Of Sound Cards (August 1997)
  • Computer Bits (September 1997)
  • Computer Bits (October 1997)
  • Computer Bits (November 1997)
  • Computer Bits (April 1998)
  • Computer Bits (June 1998)
  • Computer Bits (July 1998)
  • Computer Bits (November 1998)
  • Computer Bits (December 1998)
  • Control Your World Using Linux (July 2011)
Articles in this series:
  • Fast Charger For Nicad Batteries; Pt.1 (January 1991)
  • Fast Charger For Nicad Batteries; Pt.2 (February 1991)
Articles in this series:
  • Remote Control (February 1991)
  • Remote Control (March 1991)
Articles in this series:
  • Amateur Radio (November 1987)
  • Amateur Radio (December 1987)
  • Amateur Radio (February 1988)
  • Amateur Radio (March 1988)
  • Amateur Radio (April 1988)
  • Amateur Radio (May 1988)
  • Amateur Radio (June 1988)
  • Amateur Radio (July 1988)
  • Amateur Radio (August 1988)
  • Amateur Radio (September 1988)
  • Amateur Radio (October 1988)
  • Amateur Radio (November 1988)
  • Amateur Radio (December 1988)
  • Amateur Radio (January 1989)
  • Amateur Radio (April 1989)
  • Amateur Radio (May 1989)
  • Amateur Radio (June 1989)
  • Amateur Radio (July 1989)
  • Amateur Radio (August 1989)
  • Amateur Radio (September 1989)
  • Amateur Radio (October 1989)
  • Amateur Radio (November 1989)
  • Amateur Radio (December 1989)
  • Amateur Radio (February 1990)
  • Amateur Radio (March 1990)
  • Amateur Radio (April 1990)
  • Amateur Radio (May 1990)
  • Amateur Radio (June 1990)
  • Amateur Radio (July 1990)
  • The "Tube" vs. The Microchip (August 1990)
  • Amateur Radio (September 1990)
  • Amateur Radio (October 1990)
  • Amateur Radio (November 1990)
  • Amateur Radio (December 1990)
  • Amateur Radio (January 1991)
  • Amateur Radio (February 1991)
  • Amateur Radio (March 1991)
  • Amateur Radio (April 1991)
  • Amateur Radio (May 1991)
  • Amateur Radio (June 1991)
  • Amateur Radio (July 1991)
  • Amateur Radio (August 1991)
  • Amateur Radio (September 1991)
  • Amateur Radio (October 1991)
  • Amateur Radio (November 1991)
  • Amateur Radio (January 1992)
  • Amateur Radio (February 1992)
  • Amateur Radio (March 1992)
  • Amateur Radio (July 1992)
  • Amateur Radio (August 1992)
  • Amateur Radio (September 1992)
  • Amateur Radio (October 1992)
  • Amateur Radio (November 1992)
  • Amateur Radio (January 1993)
  • Amateur Radio (March 1993)
  • Amateur Radio (May 1993)
  • Amateur Radio (June 1993)
  • Amateur Radio (July 1993)
  • Amateur Radio (August 1993)
  • Amateur Radio (September 1993)
  • Amateur Radio (October 1993)
  • Amateur Radio (December 1993)
  • Amateur Radio (February 1994)
  • Amateur Radio (March 1994)
  • Amateur Radio (May 1994)
  • Amateur Radio (June 1994)
  • Amateur Radio (September 1994)
  • Amateur Radio (December 1994)
  • Amateur Radio (January 1995)
  • CB Radio Can Now Transmit Data (March 2001)
  • What's On Offer In "Walkie Talkies" (March 2001)
  • Stressless Wireless (October 2004)
  • “Degen” Synthesised HF Communications Receiver (January 2007)
  • WiNRADiO: Marrying A Radio Receiver To A PC (January 2007)
  • PICAXE-08M 433MHz Data Transceiver (October 2008)
  • Half-Duplex With HopeRF’s HM-TR UHF Transceivers (April 2009)
  • Dorji 433MHz Wireless Data Modules (January 2012)
Articles in this series:
  • The Technology Letters, Pt.2 (January 1989)
  • The Story Of Electrical Energy (July 1990)
  • The Story Of Electrical Energy; Pt.2 (August 1990)
  • The Story Of Electrical Energy; Pt.3 (September 1990)
  • The Story Of Electrical Energy; Pt.4 (October 1990)
  • The Story Of Electrical Energy; Pt.5 (November 1990)
  • The Story Of Electrical Energy; Pt.6 (December 1990)
  • The Story Of Electrical Energy; Pt.7 (January 1991)
  • The Story Of Electrical Energy; Pt.8 (February 1991)
  • The Story Of Electrical Energy; Pt.9 (March 1991)
  • The Story Of Electrical Energy; Pt.10 (May 1991)
  • The Story Of Electrical Energy; Pt.11 (July 1991)
  • The Story Of Electrical Energy; Pt.12 (August 1991)
  • The Story Of Electrical Energy; Pt.13 (September 1991)
  • The Story Of Electrical Energy; Pt.14 (October 1991)
  • The Story Of Electrical Energy; Pt.15 (November 1991)
  • The Story Of Electrical Energy; Pt.16 (December 1991)
  • The Story Of Electrical Energy; Pt.17 (January 1992)
  • The Story Of Electrical Energy; Pt.18 (March 1992)
  • The Story Of Electrical Energy; Pt.19 (August 1992)
  • The Story of Electrical Energy; Pt.20 (September 1992)
  • The Story Of Electrical Energy; Pt.21 (November 1992)
  • The Story Of Electrical Energy; Pt.22 (January 1993)
  • The Story of Electrical Energy (April 1993)
  • The Story Of Electrical Energy; Pt.24 (May 1993)
  • The Story Of Electrical Energy; Pt.24 (June 1993)
May 1988: Optical Tachometer For Aeromodellers; High Energy Ignition For Cars; Ultrasonic Car Burglar Alarm; Walkaround Throttle For Model Railroads, Pt.2; Designing & Build· ing RF Atten uators; Motorola MC3334P High Energy Ignition IC Data. October 1988: Stereo FM Transmitter (Uses Rohm BA1404); High Performance FM Antenna; Matchbox Crystal Set; Electro nic House Number; Converting A CB Rad io To The 28MHz Band; Queensland's Powerful Electric Locomotives. July 1988: Stereo Control Preamplifier, Pt.2; Fitting A Fuel Cut-Off Solenoid ; Booster For TV & FM Signals; The Discolight Light Show, Pt.1; Tone Burst Source For Amplifier Head· room Testing; What Is Negative Feedback, Pt.3 ; Ameren MA-1200 Power Amplifier Review; Amplifier Headroom· Is It A Con? November 1988: 120W PA Amplifier Module (Uses Mosfets); Poor Man's Plasma Display; Automotive Night Safety Light; Adding A Headset To The Speakerphone; How To Quieten The Fan In Your Computer; Screws & Screwdrivers, What You Need To Know; Diesel Electric Locomotives . August 1988: Building A Plasma Display; Unive rsal Power Supply Board; Remote Chime/ Doorbell ; High Performance AC Mil livoltmeter, Pt.1; Discolight Light Show, Pt.2; Getting The Most Out Of Nicad Batteries ; Data On Insulated Tab Triacs. December 1988: 120W PA Amplifier (With Balanced Inputs), Pt.1; Diesel Sound Generator; Car Antenna/Demister Adaptor; SSB Adaptor For Shortwave Receivers; Electronics & Holden's New V6 Engine; Why Diesel Electrics Ki lled Off Steam ; Index to Volume 1. September 1988: Hands-Free Speakerphone; Electronic Fish Bite Detector; High Perform· ance AC Millivoltmeter, Pt.2; Vader Voice; Motorola MC34018 Speakerphone IC Data; National Semiconductor LM12 150W Op Amp Data & Applications; What Is Negative Feedback, Pt.4. January 1989: Line Filter For Computers; Ultrasonic Proximity Detector For Cars; Simple Computer Sound Repeater; 120W PA Amplifier (With Balanced Inputs) Pt.1; How To Service Car Cassette Players; Massive Diesel Electrics In The USA; Marantz LD50 Loudspeakers . February 1989: Transistor Beta Tester; Minstrel 2-30 Loudspeaker System; LED Flasher For Model Railways (uses LM3909); Build A Simple VHF FM Monitor (uses MC3362), Pt.1; Lightning & Electronic Appliances; Using Comparators to Detect & Measure . March 1989: LED Message Board, Pt.1; 32· Band Graphic Equaliser, Pt.1; Stereo Com pressor For CD Players; Map Reader For Trip Calculations ; Amateur VHF FM Monitor, Pt.2; Signetics NE572 Compandor IC Data; Electronics For Everyone - Resistors. April 1989: Auxiliary Brake Light Flasher; Electronics For Everyone: What You Need to Know About Capacitors ; Telephone Bell Monitor/ Transmitter; 32-Band Graphic Equaliser, Pt.2; LED Message Board , Pt.2. May 1989: Electronic Pools/Lotto Selector; Synthesi sed Tom -Tom; Biofeedback Monitor For Your PC; Simple Stub Fi lter For Suppress- Use this handy form to order your back copies ,---------------------------------Please send me a back issue for: O September 1988 0 October 1988 O February 1989 o March 1989 o July 1989 o August 1989 O December 1989 0 January 1990 O May 1990 o June 1990 O October 1990 0 November 1990 O May 1988 O November 1988 O April 1989 o September 1989 O February 1990 O July 1990 0 December 1990 0 July 1988 0 December 1988 0 May 1989 o October 1989 0 March 1990 0 August 1990 O January 1991 Enclosed is my cheque/money order for $_ _ ____or please debit my: 0 Bankcard Card No. $5.00 each (includes p&p). Overseas orders add $1 each for postage. NZ orders are sent air mail. Signature _ _ _ _ __ __ __ _ __ Card expiry date_ _ /_ _ Name _ _ _ __ __ __ __ _ _ _ _ __ _ _ __ _ __ _ Street _ _ _ _ _ _ _ __ _ _ _ __ _ _ _ __ _ __ __ Suburb/town-~- -- -- - - - - - - - -- Postcode _____ _ 58 --7 0 August 1988 0 January 1989 0 June 1989 O November 1989 O April 1990 O September 1990 SILICON CHIP 0 Visa Card 0 Master Card Detach and mall to: SILICON CHIP PUBLICATIONS PO BOX 139 COLLAROY BEACH NSW 2097 Or call (02) 979 5644 & quote your credit card details. Fax (02) 979 6503 x I I ~-,--, .,J,-1. ' . .. ;~ .. ing TV Interference; LED Message Board , Pt.3 ; Electronics for Everyone - All About Electrolytic Capacitors. June 1989: Touch-Lamp Dimmer (uses Siemens SLB0586) ; Passive Loop Antenna For AM Radios ; Universal Temperature Contro ller; Understanding CRO Probes; LED Message Board , Pt.3 ; Coherent CW - A New Low Power Transmission Technique. July 1989: Exhaust Gas Monitor (Uses TGS812 Gas Sensor); Extension For The Touch-Lamp Dimmer; Experimental Mains Hum Sniffers ; Compact Ultrasonic Car Alarm ; NSW 86 Class Electrics; Facts On The PhaxSwitch Sharing Your Phone Line With A Fax Machine. August 1989: Build A Baby Tower AT Computer; Studio Series 20-Band Stereo Equaliser, Pt.1; Garbage Rem inder - A 7-day Programmable Timer; Introduction To Stepper Motors ; GaAsFet Preamplifier For The 2-Metre Band ; Modern 3-Phase Electric Locomotives. September 1989: 2-Chip Portable AM Stereo Rad io (Uses MC13024 and TX7376P) Pt.1; Alarm-Triggered Telephone Dialler; High Or Low Fluid Level Detector (uses LM1830N); Simple DTMF Encoder (uses Texas TMC5089); Studio Series 20-Band Stereo Equaliser, Pt.2 ; Auto-Zero Module for Aud io Amplifiers (Uses LMC669); A Guide To Hard Disc Drives. October 1989: Introducing Remote Control; FM Rad io Intercom For Motorbikes (Uses BA1404 And TDA?000) Pt.1 ; GaAsFet Preamplifier For Amateur TV ; 1Mb Printer Buffer; 2Chip Portable AM Stereo Radio, Pt.2 ; Installing A Hard Disc In Th e PC; A Look At Australian Monorails. November 1989: Radfax Decoder For Yo ur PC (Displays Fax , RTTY and Morse) ; Super Sensitive FM Bug; Build A Low Cost Analog Multi meter; FM Radio Intercom For Motorbikes, Pt.2; 2-Chip Portable AM Stereo Radio, Pt.3; Floppy Disc Drive Formats & Options ; The Pilbara Iron Ore Railways . December 1989: Digital Voice Board (Records Up To Four Separate Messages , Uses Texas TMS3477NL and 256K RAMs); UHF Remote Switch; Balanced Input & Output Stages ; National Semiconductor LM831 Low Vo ltage Amplifier IC Data; Install A Clock Card In Your PC ; Index to Volume 2 (Jan-Dec 1989). January 1990: Service Tips For Your VCR ; Speeding Up Your PC; Phone Patch For Radio Amateurs; High Quality Sine/Square Oscillator; Active Antenna Kit ; The Latest On High Definition TV ; Speed Controller For Ceiling Fans ; Designing UHF Transmitter Stages. February 1990: 16-Channel Mixing Desk ; High Qu ality Aud io Oscillator, Pt.2 ; The Incredible Hot Canaries ; Random Wire Antenna Tuner For 6 Metres; Phone Patch For Radio Amateurs, Pt.2; PC Program Calculates Great Circle Bearings . March 1990: 6/12V Charger For Sealed LeadAcid Batteries ; Delay Unit For Automatic Antennas; Workout Timer For Aerobics Classes; 16-Channel Mixing Desk, Pt.2 ; Using The UC3906 SLA Battery Charger IC; Digital Waveform Generation Using a PC ; The Controls On A Model Aircraft. Apri l 1990: Dual Tracking ±50V Power Suppl y; VOX With Delayed Audio ; Relative Field Strength Meter: 16-Channel Mixing Desk, Pt.3 ; Simple Service Tips For Your Microwave Oven ; Model Aircraft Aerodynamics; Active CW Filter For Weak Signal Reception. May 1990: Build A 4-Digit Capacitance Meter ; High Energy Ignition For Cars With Reluctor Distributors ; The Mazzie CW Transceiver ; Waveform Generation Using A PC , Pt.3 ; 16Channel Mixing Desk, Pt.4; What To Do When Your Computer Goes Bung , Pt.1; Electronic Load For Checking Power Supplies. June 1990: Multi-Sector Home Burglar Alarm; Low-Noise Universal Stereo Preamplifier; Load Protection Switch For Power Supplies; A Speed Alarm For Your Car; Design Factors For Model Aircraft; Fitting A Fax Card To Your Computer; What To Do When Your Computer Goes Bung , Pt.2. July 1990: Digital Sine/Square Generator, Pt.1 (Covers 0-500kHz) ; Burglar Alarm Keypad & Combination Lock; Simple Electronic Die ; LowCost Dual Power Supply; Inside A Coal Burning Power Station; What To Do When Your Computer Goes Bung , Pt.3 ; Digital Waveform Generation Using A Computer, Pt.4. August 1990: Hig h Stability UHF Remote Transmitter; Universal Safety Timer For Appl iances ; Horace The Electronic Cricket; Digital Sine/Square Wave Generator, Pt .2; The Tube Vs. The Microchip (Two Shortwave Receive rs Compared); What To Do When Your Computer Goes Bung , Pt.4. September 1990: Music On Hold For You r Telephone; Remote Control Extender For VCRs; Power Supply For Burg lar Alarms ; LowCost 3-Digit Counter Module; Voice Mail For Your Computer; Simple Shortwave Converter For The 2-Metre Band ; How To Make Dynamark Labels. October 1990: Low-Cost Siren For Burglar Alarms ; Dimming Controls For The Discolight; Surfsound Simulator; DC Offset For DMMs; The Dangers of Polychlorinated Biphenyls; The Bose Lifestyle Music System ; Using The NE602 In Home-Brew Converter Circu its. November 1990: Low-Cost Model Train Con troller; Battery Powered Laser Pointer; A Really Snazzy Egg Timer; 1.5V To 9V DC Converter; How To Connect Two TV Sets To One VCR ; Introduction To Digital Electronics ; Simple 6-Metre Amateur Transmitter. December 1990: DC-DC Converter For Car Amplifiers; The Big Escape; Wiper Pulser For Rear Windows ; Versatile 4-Digit Combination Lock; SW Power Amplifier For The 6-Metre Amateur Transmitter; The Green CD Pen Controversy. January 1991: Fast Charger For Nicad Batteries; Have Fun With The Fruit Mach ine; TwoTone Alarm Module ; Laser Power Supply (For Tubes With Ratings Up To 10mW) ; LCD Readout For The Capacitance Meter; How Quartz Crystals Work; The Dangers When Servicing Microwave Ovens; Electric Ve hicles - The State Of The Art. PLEASE NOTE: All issues from November 1987 to April 1988, plus June 1988, are now sold out. All subsequent issues are presently in stock. For readers wanting articles from issues out of print, we can supply photostat copies (or tearsheets) at $5 .00 per article , including postage. When supplying photostat articles or back copies, we automatically supply any relevant Notes & Errata, at no extra charge. _J FEBRUARY1991 59