Silicon ChipContents - March 1992 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: The truth about fax machines
  4. Feature: The Electronic Dentist by Siemens Review
  5. Project: TV Transmitter For VHF VCRs by John Clarke
  6. Project: Studio Twin Fifty Amplifier, Pt.1 by Leo Simpson & Bob Flynn
  7. Project: Thermostatic Switch For Car Radiator Fans by John Clarke
  8. Feature: Amateur Radio by Garry Cratt, VK2YBX
  9. Feature: Computer Bits by Jennifer Bonnitcha
  10. Serviceman's Log: VCR tape transport problems by The TV Serviceman
  11. Project: Build A Telephone Call Timer by Darren Yates
  12. Vintage Radio: A look at valve substitutions by John Hill
  13. Feature: Remote Control by Bob Young
  14. Subscriptions
  15. Back Issues
  16. Order Form
  17. Market Centre
  18. Outer Back Cover

This is only a preview of the March 1992 issue of Silicon Chip.

You can view 39 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:
  • Studio Twin Fifty Amplifier, Pt.1 (March 1992)
  • Studio Twin Fifty Amplifier, Pt.2 (April 1992)
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 (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:
  • Remote Control (December 1991)
  • Remote Control (January 1992)
  • Designing A Speed Controller For Electric Models (February 1992)
  • Remote Control (March 1992)
Vol.5, No.3. March 1992 FEATURES 4 The Electronic Dentist from Siemens Review A computer makes the fillings 8 How To Adjust Your Hot Water System by Leo Simpson Turn down the heat & save power 34 The Story Of Electrical Energy, Pt.18 by Bryan Maher LOOKING FOR A NEW stereo amplifier to replace your ageing clunker? This new design delivers 50W per channel into Bohm loads & fits in a midi-sized case. Details page 22. How the Broadwater was tamed 70 Updating The Resistor & Capacitor Scene by Leo Simpson From now on, it's 1 % resistors & MKT capacitors PROJECTS TO BUILD 16 TV Transmitter For VHF VCRs by John Clarke Transmits signals to a remote TV set without messy cables 22 Studio Twin Fifty Stereo Amplifier by Leo Simpson & Bob Flynn High performance in a compact package 42 Thermostatic Switch For Car Radiator Fans by John Clarke Can be adjusted to suit your car's engine 62 Build A Telephone Call Timer by Darren Yates Keep tabs on those long-distance calls SPECIAL COLUMNS 50 Amateur Radio by Gurry Crutt The AR-1500 & AR-2800 scanning receivers THIS MODIFIED TV transmitter can now be ·used to transmit signals from any VCR to a remote TV set without messy cables or splitters. Turn to page 16. 52 Computer Bits by Jennifer Bonnitchu Coping with damaged directories & file allocation errors 54 Serviceman's Log by the TV Serviceman VCR tape transport problems 72 Vintage Radio by John Hill A look at valve substitutions 78 Remote Control by Bob Young Voltage losses in speed controllers DEPARTMENTS A 2 Publisher's Letter 13 Circuit Notebook 15 News Update 60 Computer Update 77 Bookshelf 80 Subscriptions Page Product Showcase Ask Silicon Chip Order Form Market Centre 96 Advertising Index 92 Notes & Errata 84 90 93 94 HAS THE THERMOSTAT failed on your car's electric radiator fan? This electronic thermostat can replace it & can be adjusted to switch on at a temperature to suit your particular vehicle. Construction starts on page 42. MARCH 1992 1