Silicon ChipContents - April 1993 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Forecasting electronic developments in cars
  4. Feature: The Story of Electrical Energy by Bryan Maher
  5. Project: A Solar-Powered Electric Fence by Branco Justic
  6. Feature: Silicon Chip 5th Birthday Sweepstakes
  7. Project: Build An Audio Power Meter by Darren Yates
  8. Back Issues
  9. Serviceman's Log: The path of TV service never did run smooth by The TV Serviceman
  10. Project: Three-Function Home Weather Station by John Clarke
  11. Feature: Remote Control by Bob Young
  12. Project: 12VDC To 70VDC Step-Up Voltage Converter by Darren Yates
  13. Order Form
  14. Feature: Computer Bits by Joe Elkhorne
  15. Product Showcase
  16. Project: A Digital Clock With Battery Back-Up by Darren Yates
  17. Vintage Radio: Restoring an old radio chassis by John Hill
  18. Market Centre
  19. Advertising Index
  20. Outer Back Cover

This is only a preview of the April 1993 issue of Silicon Chip.

You can view 48 of the 96 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:
  • 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)
Items relevant to "Build An Audio Power Meter":
  • Silicon Chip article scan, April 1993 - Audio Power Meter (AUD $10.00)
  • Audio Power Meter PCB pattern (PDF download) [01105931] (Free)
Items relevant to "Three-Function Home Weather Station":
  • 3-Function Home Weather Station PCB patterns (PDF download) [04201931/2] (Free)
Articles in this series:
  • Remote Control (October 1989)
  • Remote Control (November 1989)
  • Remote Control (December 1989)
  • Remote Control (January 1990)
  • Remote Control (February 1990)
  • Remote Control (March 1990)
  • Remote Control (April 1990)
  • Remote Control (May 1990)
  • Remote Control (June 1990)
  • Remote Control (August 1990)
  • Remote Control (September 1990)
  • Remote Control (October 1990)
  • Remote Control (November 1990)
  • Remote Control (December 1990)
  • Remote Control (April 1991)
  • Remote Control (July 1991)
  • Remote Control (August 1991)
  • Remote Control (October 1991)
  • Remote Control (April 1992)
  • Remote Control (April 1993)
  • Remote Control (November 1993)
  • Remote Control (December 1993)
  • Remote Control (January 1994)
  • Remote Control (June 1994)
  • Remote Control (January 1995)
  • Remote Control (April 1995)
  • Remote Control (May 1995)
  • Remote Control (July 1995)
  • Remote Control (November 1995)
  • Remote Control (December 1995)
Items relevant to "12VDC To 70VDC Step-Up Voltage Converter":
  • 12V DC to 70V DC Step-Up Converter PCB pattern (PDF download) [11102931] (Free)
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)
Items relevant to "A Digital Clock With Battery Back-Up":
  • Digital Clock with Battery Backup PCB patterns (PDF download) [04101931-3] (Free)
L..,.,_,_,, --;~ 1 •~ • 7 --, ~-I L__ I I I lI_ - _ - -,__ I I -; 7 ,__ I --; I I "'1 . I l I l"'----I .___ ...... - - ·1 I I · I I I ,,J__ \ } , _ Vo/.6, No.4; April 1993 FEATURES DIGITAL COMPACT CASSETTE (DCC) players are now available in Australia. The format provides CD _quality & can also play conventional cassette tapes. See page 6. 6 The Digital Compact Cassette by Leo Simpson New digital decks also play conventional cassettes 8 The Story Of Electrical Energy by Bryan Maher Winning the white metal - the story of aluminium 21 Silicon Chip 5th Birthday Sweepstakes The list of prize winners PROJECTS TO BUILD . 14 A Solar-Powered Electric Fence by Branco Justic Use it to control livestock & protect vegetable gardens ELECTRIC FENCES are ideal for controlling livestock. This lowcost design can control fences up to several kilometres long & is powered by the Sun. See page 14. 22 Build An Audio Power Meter by Darren Yates Monitors power levels from 200mW to 100W 37 Three-Function Home Weather Station by John Clarke Monitors barometric pressure, temperature & relative humidity 56 12VDC To 70VDC Step-Up Voltage Converter by Darren Yates Ideal for powering battery-operated valve radio receivers 80 A Digital Clock With Battery Back-Up by Darren Yates The 4-digit display features automatic dimming SPECIAL COLUMNS 32 Serviceman's Log by the TV Serviceman The path of TV service never did run smooth 53 Remote Control by Bob Young Practical applications for the low-cost speed controller 64 Computer Bits by Joe Elkhorne · THIS WEATHER STATION has a 3½-digit LCD & can monitor temperature, barometric pressure & relative humidity. Construction starts on page 37. Upgrading to a 386 - now I know what a "kludge" is 88 Vintage Radio by John Hill Restoring an old radio chassis DEPARTMENTS 2 Publisher's Letter 4 Mailbag 30 Back Issues 63 Order Form 70 Product Showcase 72 Circuit Notebook 92 Ask Silicon Chip 93 Notes & Errata 94 Market Centre 96 Advertising Index WANT TO CONVERT 9-12V DC to any voltage up to about 70V DC? This low-cost unit will do the job. Details page 56. APRIL 1993 1