Silicon ChipContents - March 1990 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: UHF translators and environmentalists
  4. Feature: The Evolution of Electric Railways by Bryan Maher
  5. Feature: The UC3906 SLA Battery Charger IC by Darren Yates
  6. Vintage Radio: Wave traps - a useful vintage radio accessory by John Hill
  7. Project: 6/12V Charger For SLA Batteries by Darren Yates
  8. Project: Delay Unit For Automatic Antennas by Greg Swain
  9. Serviceman's Log: A bit of a snag with the sausage rolls by The TV Serviceman
  10. Project: Workout Timer For Aerobics Classes by Steve Calder
  11. Subscriptions
  12. Back Issues
  13. Project: 16-Channel Mixing Desk by John Clarke & Leo Simpson
  14. Feature: Amateur Radio by Garry Cratt, VK2YBX
  15. Feature: Computer Bits by Steve Payor
  16. Feature: Remote Control by Bob Young
  17. Market Centre
  18. Advertising Index
  19. Outer Back Cover

This is only a preview of the March 1990 issue of Silicon Chip.

You can view 44 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:
  • The Evolution of Electric Railways (November 1987)
  • The Evolution of Electric Railways (December 1987)
  • The Evolution of Electric Railways (January 1988)
  • The Evolution of Electric Railways (February 1988)
  • The Evolution of Electric Railways (March 1988)
  • The Evolution of Electric Railways (April 1988)
  • The Evolution of Electric Railways (May 1988)
  • The Evolution of Electric Railways (June 1988)
  • The Evolution of Electric Railways (July 1988)
  • The Evolution of Electric Railways (August 1988)
  • The Evolution of Electric Railways (September 1988)
  • The Evolution of Electric Railways (October 1988)
  • The Evolution of Electric Railways (November 1988)
  • The Evolution of Electric Railways (December 1988)
  • The Evolution of Electric Railways (January 1989)
  • The Evolution Of Electric Railways (February 1989)
  • The Evolution of Electric Railways (March 1989)
  • The Evolution of Electric Railways (April 1989)
  • The Evolution of Electric Railways (May 1989)
  • The Evolution of Electric Railways (June 1989)
  • The Evolution of Electric Railways (July 1989)
  • The Evolution of Electric Railways (August 1989)
  • The Evolution of Electric Railways (September 1989)
  • The Evolution of Electric Railways (October 1989)
  • The Evolution of Electric Railways (November 1989)
  • The Evolution Of Electric Railways (December 1989)
  • The Evolution of Electric Railways (January 1990)
  • The Evolution of Electric Railways (February 1990)
  • The Evolution of Electric Railways (March 1990)
Items relevant to "6/12V Charger For SLA Batteries":
  • Silicon Chip article scan, March 1990 - 6/12V SLA Battery Charger (AUD $10.00)
Articles in this series:
  • 16-Channel Mixing Desk (February 1990)
  • 16-Channel Mixing Desk (March 1990)
  • 16-Channel Mixing Desk, Pt.3 (April 1990)
  • 16-Channel Mixing Desk; Pt.4 (May 1990)
  • Modifications To The 16-Channel Mixer (November 1990)
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:
  • Computer Bits (February 1990)
  • Computer Bits (March 1990)
  • Waveform Generation Using A PC, Pt.3 (May 1990)
  • Waveform Generation Using A PC, Pt.4 (July 1990)
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)
THIS NEW BATTERY CHARGER can charge both 6V & 12V sealed lead acid batteries with capacities of up to 15Ah. Construction starts on page 20. MARCH 1990 FEATURES 4 The Evolution of Electric Railways by Bryan Maher Pt.29: the Australian VFT project 10 The UC3906 SLA Battery Charger IC by Darren Yates Using it in practical circuits 96 The Technology Letters by Richard Kopf Adventures in UHF TV land ARE YOU INTO A strenuous aerobics exercise program? Our new Workout Timer will tell you when to change exercises by flashing a light & sounding a buzzer. Details page 44. PROJECTS TO BUILD 20 6/12V Charger For SLA Batteries by Darren Yates Charges SLA batteries of up to 15A.h capacity 30 Delay Unit For Automatic Antennas by Greg Swain Stops the antenna jitters 44 Workout Timer For Aerobics Classes by Steve Calder It flashes a light & sounds a buzzer 60 16-Channel Mixing Desk by John Clarke The full circuit details SPECIAL COLUMNS 14 Vintage Radio by John Hill Wave traps - a useful vintage radio accessory 34 Serviceman's Log by the TV serviceman A bit of the snag with the sausage machine 72 Amateur Radio by Garry Cratt Understanding single sideband transmission .a: THE SERVICEMAN really went through the mincer this month but the snags were eventually sorted out. His battle starts on page 34. 80 Computer Bits by Steve Payor Digital waveform generation using a PC 86 Remote Control by Bob Young The controls on a model aircraft DEPARTMENTS 2 Publisher's Letter 42 Circuit Notebook 56 Subscription Page 57 Bookshelf 58 Back Issues Product Showcase Ask Silicon Chip Notes & Errata Market Centre IBC Silicon Chip Binders 90 100 102 103 MANY AUTOMATIC ANTENNAS go through multiple stop/start operations when you go to start your car. This simple unit will stop the antenna jitters. See page 30. MARCH 1990 1