Silicon ChipMarket Centre - December 1989 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Dynamic RAMs are getting bigger & cheaper
  4. Subscriptions
  5. Feature: Install A Clock Card In Your Computer by Leo Simpson
  6. Vintage Radio: Scrounging bits and pieces by John Hill
  7. Feature: Remote Control by Bob Young
  8. Project: Digital Voice Recorder Board by John Clarke
  9. Serviceman's Log: Knowing when to draw the line by The TV Serviceman
  10. Project: Easy To Build UHF Remote Switch by Greg Swain
  11. Back Issues
  12. Feature: Computer Bits by Jennifer Bonnitcha
  13. Project: Balanced Input/Output Stages by John Clarke
  14. Feature: The Evolution Of Electric Railways by Bryan Maher
  15. Feature: Amateur Radio by Garry Cratt, VK2YBX
  16. Feature: The Way I See It by Neville Williams
  17. Feature: The LM831 Low Voltage Audio Amplifier by Darren Yates
  18. Ask Silicon Chip
  19. Feature: Index to Volume 2: Jan-Dec 1989
  20. Market Centre
  21. Advertising Index
  22. Outer Back Cover

This is only a preview of the December 1989 issue of Silicon Chip.

You can view 62 of the 120 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:
  • Remote Control (October 1989)
  • Remote Control (October 1989)
  • Remote Control (November 1989)
  • Remote Control (November 1989)
  • Remote Control (December 1989)
  • Remote Control (December 1989)
  • Remote Control (January 1990)
  • Remote Control (January 1990)
  • Remote Control (February 1990)
  • Remote Control (February 1990)
  • Remote Control (March 1990)
  • Remote Control (March 1990)
  • Remote Control (April 1990)
  • Remote Control (April 1990)
  • Remote Control (May 1990)
  • Remote Control (May 1990)
  • Remote Control (June 1990)
  • Remote Control (June 1990)
  • Remote Control (August 1990)
  • Remote Control (August 1990)
  • Remote Control (September 1990)
  • Remote Control (September 1990)
  • Remote Control (October 1990)
  • Remote Control (October 1990)
  • Remote Control (November 1990)
  • Remote Control (November 1990)
  • Remote Control (December 1990)
  • Remote Control (December 1990)
  • Remote Control (April 1991)
  • Remote Control (April 1991)
  • Remote Control (July 1991)
  • Remote Control (July 1991)
  • Remote Control (August 1991)
  • Remote Control (August 1991)
  • Remote Control (October 1991)
  • Remote Control (October 1991)
  • Remote Control (April 1992)
  • Remote Control (April 1992)
  • Remote Control (April 1993)
  • Remote Control (April 1993)
  • Remote Control (November 1993)
  • Remote Control (November 1993)
  • Remote Control (December 1993)
  • Remote Control (December 1993)
  • Remote Control (January 1994)
  • Remote Control (January 1994)
  • Remote Control (June 1994)
  • Remote Control (June 1994)
  • Remote Control (January 1995)
  • Remote Control (January 1995)
  • Remote Control (April 1995)
  • Remote Control (April 1995)
  • Remote Control (May 1995)
  • Remote Control (May 1995)
  • Remote Control (July 1995)
  • Remote Control (July 1995)
  • Remote Control (November 1995)
  • Remote Control (November 1995)
  • Remote Control (December 1995)
  • Remote Control (December 1995)
Items relevant to "Computer Bits":
  • Model Railway Receiver/Decoder Module PCB patterns (PDF download) [09105981/2] (Free)
  • Model Railway Command Control PCB patterns (PDF download) [09102981/09103981] (Free)
Articles in this series:
  • Computer Bits (December 1989)
  • Computer Bits (December 1989)
  • Command Control For Model Railways; Pt.1 (January 1998)
  • Command Control For Model Railways; Pt.1 (January 1998)
  • Command Control For Model Railways; Pt.2 (February 1998)
  • Command Control For Model Railways; Pt.2 (February 1998)
  • Command Control For Model Railways; Pt.3 (March 1998)
  • Command Control For Model Railways; Pt.3 (March 1998)
  • Command Control For Model Railways; Pt.4 (May 1998)
  • Command Control For Model Railways; Pt.4 (May 1998)
  • Command Control For Model Railways; Pt.5 (June 1998)
  • Command Control For Model Railways; Pt.5 (June 1998)
Articles in this series:
  • The Evolution of Electric Railways (November 1987)
  • The Evolution of Electric Railways (November 1987)
  • The Evolution of Electric Railways (December 1987)
  • The Evolution of Electric Railways (December 1987)
  • The Evolution of Electric Railways (January 1988)
  • The Evolution of Electric Railways (January 1988)
  • The Evolution of Electric Railways (February 1988)
  • The Evolution of Electric Railways (February 1988)
  • The Evolution of Electric Railways (March 1988)
  • The Evolution of Electric Railways (March 1988)
  • The Evolution of Electric Railways (April 1988)
  • The Evolution of Electric Railways (April 1988)
  • The Evolution of Electric Railways (May 1988)
  • The Evolution of Electric Railways (May 1988)
  • The Evolution of Electric Railways (June 1988)
  • The Evolution of Electric Railways (June 1988)
  • The Evolution of Electric Railways (July 1988)
  • The Evolution of Electric Railways (July 1988)
  • The Evolution of Electric Railways (August 1988)
  • The Evolution of Electric Railways (August 1988)
  • The Evolution of Electric Railways (September 1988)
  • The Evolution of Electric Railways (September 1988)
  • The Evolution of Electric Railways (October 1988)
  • The Evolution of Electric Railways (October 1988)
  • The Evolution of Electric Railways (November 1988)
  • The Evolution of Electric Railways (November 1988)
  • The Evolution of Electric Railways (December 1988)
  • The Evolution of Electric Railways (December 1988)
  • The Evolution of Electric Railways (January 1989)
  • The Evolution of Electric Railways (January 1989)
  • The Evolution Of Electric Railways (February 1989)
  • The Evolution Of Electric Railways (February 1989)
  • The Evolution of Electric Railways (March 1989)
  • The Evolution of Electric Railways (March 1989)
  • The Evolution of Electric Railways (April 1989)
  • The Evolution of Electric Railways (April 1989)
  • The Evolution of Electric Railways (May 1989)
  • The Evolution of Electric Railways (May 1989)
  • The Evolution of Electric Railways (June 1989)
  • The Evolution of Electric Railways (June 1989)
  • The Evolution of Electric Railways (July 1989)
  • The Evolution of Electric Railways (July 1989)
  • The Evolution of Electric Railways (August 1989)
  • The Evolution of Electric Railways (August 1989)
  • The Evolution of Electric Railways (September 1989)
  • The Evolution of Electric Railways (September 1989)
  • The Evolution of Electric Railways (October 1989)
  • The Evolution of Electric Railways (October 1989)
  • The Evolution of Electric Railways (November 1989)
  • The Evolution of Electric Railways (November 1989)
  • The Evolution Of Electric Railways (December 1989)
  • The Evolution Of Electric Railways (December 1989)
  • The Evolution of Electric Railways (January 1990)
  • The Evolution of Electric Railways (January 1990)
  • The Evolution of Electric Railways (February 1990)
  • The Evolution of Electric Railways (February 1990)
  • The Evolution of Electric Railways (March 1990)
  • The Evolution of Electric Railways (March 1990)
Articles in this series:
  • Amateur Radio (November 1987)
  • Amateur Radio (November 1987)
  • Amateur Radio (December 1987)
  • Amateur Radio (December 1987)
  • Amateur Radio (February 1988)
  • Amateur Radio (February 1988)
  • Amateur Radio (March 1988)
  • Amateur Radio (March 1988)
  • Amateur Radio (April 1988)
  • Amateur Radio (April 1988)
  • Amateur Radio (May 1988)
  • Amateur Radio (May 1988)
  • Amateur Radio (June 1988)
  • Amateur Radio (June 1988)
  • Amateur Radio (July 1988)
  • Amateur Radio (July 1988)
  • Amateur Radio (August 1988)
  • Amateur Radio (August 1988)
  • Amateur Radio (September 1988)
  • Amateur Radio (September 1988)
  • Amateur Radio (October 1988)
  • Amateur Radio (October 1988)
  • Amateur Radio (November 1988)
  • Amateur Radio (November 1988)
  • Amateur Radio (December 1988)
  • Amateur Radio (December 1988)
  • Amateur Radio (January 1989)
  • Amateur Radio (January 1989)
  • Amateur Radio (April 1989)
  • Amateur Radio (April 1989)
  • Amateur Radio (May 1989)
  • Amateur Radio (May 1989)
  • Amateur Radio (June 1989)
  • Amateur Radio (June 1989)
  • Amateur Radio (July 1989)
  • Amateur Radio (July 1989)
  • Amateur Radio (August 1989)
  • Amateur Radio (August 1989)
  • Amateur Radio (September 1989)
  • Amateur Radio (September 1989)
  • Amateur Radio (October 1989)
  • Amateur Radio (October 1989)
  • Amateur Radio (November 1989)
  • Amateur Radio (November 1989)
  • Amateur Radio (December 1989)
  • Amateur Radio (December 1989)
  • Amateur Radio (February 1990)
  • Amateur Radio (February 1990)
  • Amateur Radio (March 1990)
  • Amateur Radio (March 1990)
  • Amateur Radio (April 1990)
  • Amateur Radio (April 1990)
  • Amateur Radio (May 1990)
  • Amateur Radio (May 1990)
  • Amateur Radio (June 1990)
  • Amateur Radio (June 1990)
  • Amateur Radio (July 1990)
  • Amateur Radio (July 1990)
  • The "Tube" vs. The Microchip (August 1990)
  • The "Tube" vs. The Microchip (August 1990)
  • Amateur Radio (September 1990)
  • Amateur Radio (September 1990)
  • Amateur Radio (October 1990)
  • Amateur Radio (October 1990)
  • Amateur Radio (November 1990)
  • Amateur Radio (November 1990)
  • Amateur Radio (December 1990)
  • Amateur Radio (December 1990)
  • Amateur Radio (January 1991)
  • Amateur Radio (January 1991)
  • Amateur Radio (February 1991)
  • Amateur Radio (February 1991)
  • Amateur Radio (March 1991)
  • Amateur Radio (March 1991)
  • Amateur Radio (April 1991)
  • Amateur Radio (April 1991)
  • Amateur Radio (May 1991)
  • Amateur Radio (May 1991)
  • Amateur Radio (June 1991)
  • Amateur Radio (June 1991)
  • Amateur Radio (July 1991)
  • Amateur Radio (July 1991)
  • Amateur Radio (August 1991)
  • Amateur Radio (August 1991)
  • Amateur Radio (September 1991)
  • Amateur Radio (September 1991)
  • Amateur Radio (October 1991)
  • Amateur Radio (October 1991)
  • Amateur Radio (November 1991)
  • Amateur Radio (November 1991)
  • Amateur Radio (January 1992)
  • Amateur Radio (January 1992)
  • Amateur Radio (February 1992)
  • Amateur Radio (February 1992)
  • Amateur Radio (March 1992)
  • Amateur Radio (March 1992)
  • Amateur Radio (July 1992)
  • Amateur Radio (July 1992)
  • Amateur Radio (August 1992)
  • Amateur Radio (August 1992)
  • Amateur Radio (September 1992)
  • Amateur Radio (September 1992)
  • Amateur Radio (October 1992)
  • Amateur Radio (October 1992)
  • Amateur Radio (November 1992)
  • Amateur Radio (November 1992)
  • Amateur Radio (January 1993)
  • Amateur Radio (January 1993)
  • Amateur Radio (March 1993)
  • Amateur Radio (March 1993)
  • Amateur Radio (May 1993)
  • Amateur Radio (May 1993)
  • Amateur Radio (June 1993)
  • Amateur Radio (June 1993)
  • Amateur Radio (July 1993)
  • Amateur Radio (July 1993)
  • Amateur Radio (August 1993)
  • Amateur Radio (August 1993)
  • Amateur Radio (September 1993)
  • Amateur Radio (September 1993)
  • Amateur Radio (October 1993)
  • Amateur Radio (October 1993)
  • Amateur Radio (December 1993)
  • Amateur Radio (December 1993)
  • Amateur Radio (February 1994)
  • Amateur Radio (February 1994)
  • Amateur Radio (March 1994)
  • Amateur Radio (March 1994)
  • Amateur Radio (May 1994)
  • Amateur Radio (May 1994)
  • Amateur Radio (June 1994)
  • Amateur Radio (June 1994)
  • Amateur Radio (September 1994)
  • Amateur Radio (September 1994)
  • Amateur Radio (December 1994)
  • Amateur Radio (December 1994)
  • Amateur Radio (January 1995)
  • Amateur Radio (January 1995)
  • CB Radio Can Now Transmit Data (March 2001)
  • CB Radio Can Now Transmit Data (March 2001)
  • What's On Offer In "Walkie Talkies" (March 2001)
  • What's On Offer In "Walkie Talkies" (March 2001)
  • Stressless Wireless (October 2004)
  • Stressless Wireless (October 2004)
  • WiNRADiO: Marrying A Radio Receiver To A PC (January 2007)
  • WiNRADiO: Marrying A Radio Receiver To A PC (January 2007)
  • “Degen” Synthesised HF Communications Receiver (January 2007)
  • “Degen” Synthesised HF Communications Receiver (January 2007)
  • PICAXE-08M 433MHz Data Transceiver (October 2008)
  • PICAXE-08M 433MHz Data Transceiver (October 2008)
  • Half-Duplex With HopeRF’s HM-TR UHF Transceivers (April 2009)
  • Half-Duplex With HopeRF’s HM-TR UHF Transceivers (April 2009)
  • Dorji 433MHz Wireless Data Modules (January 2012)
  • Dorji 433MHz Wireless Data Modules (January 2012)
Articles in this series:
  • The Way I See It (November 1987)
  • The Way I See It (November 1987)
  • The Way I See It (December 1987)
  • The Way I See It (December 1987)
  • The Way I See It (January 1988)
  • The Way I See It (January 1988)
  • The Way I See It (February 1988)
  • The Way I See It (February 1988)
  • The Way I See It (March 1988)
  • The Way I See It (March 1988)
  • The Way I See It (April 1988)
  • The Way I See It (April 1988)
  • The Way I See It (May 1988)
  • The Way I See It (May 1988)
  • The Way I See It (June 1988)
  • The Way I See It (June 1988)
  • The Way I See it (July 1988)
  • The Way I See it (July 1988)
  • The Way I See It (August 1988)
  • The Way I See It (August 1988)
  • The Way I See It (September 1988)
  • The Way I See It (September 1988)
  • The Way I See It (October 1988)
  • The Way I See It (October 1988)
  • The Way I See It (November 1988)
  • The Way I See It (November 1988)
  • The Way I See It (December 1988)
  • The Way I See It (December 1988)
  • The Way I See It (January 1989)
  • The Way I See It (January 1989)
  • The Way I See It (February 1989)
  • The Way I See It (February 1989)
  • The Way I See It (March 1989)
  • The Way I See It (March 1989)
  • The Way I See It (April 1989)
  • The Way I See It (April 1989)
  • The Way I See It (May 1989)
  • The Way I See It (May 1989)
  • The Way I See It (June 1989)
  • The Way I See It (June 1989)
  • The Way I See It (July 1989)
  • The Way I See It (July 1989)
  • The Way I See It (August 1989)
  • The Way I See It (August 1989)
  • The Way I See It (September 1989)
  • The Way I See It (September 1989)
  • The Way I See It (October 1989)
  • The Way I See It (October 1989)
  • The Way I See It (November 1989)
  • The Way I See It (November 1989)
  • The Way I See It (December 1989)
  • The Way I See It (December 1989)
CEN Cash in your surplus gear. Advertise it here in Silicon Chip. CLASSIFIED ADVERTISING COUPON Advertising rates for this page: Classified ads - $7 for up to 15 words plus 40 cents for each additional word; Display ads (casual rate) - $20 per column centimetre (max. 10cm) Closing date: five weeks prior to month of sale; If you use a PO Box number, you must include your permanent address and phone number for our files. We cannot accept ads submitted without this information. Print your advert on a separate sheet of paper and send it with this form and your payment to Silicon Chip Classifieds, PO Box 139, Collaroy Beach, NSW 2097. Fax: 982 9553. Name .. Street Postcode Suburb/Town or please debit my Enclosed is my cheque or money order for $ O Visa Card O MasterCard 0 Bankcard I Card No \ I .. Card expiry date ..... ../. ...... / .. . Signature FOR SALE PUBLIC DOMAIN & shareware software for IBM & compatibles. Catalog disc $4.00. Also TV-REPAIR.TXT which covers faults in most popular brands. It can save hours of work. On a 5¼-inch disc. Just $28.00 inc. p/post. Martins Television Service, PO Box 1013, Taree, NSW 2430 . BUILD YOUR OWN LED Moving Message Board. This 16-character $150 short form kit was featured in MEMORY CHIPS Prices at November 6, 1989 Speed 150ns 120ns Chip Type 10Dns SIMMS 9 x 256 9 x 1 mb 9 x 1mb 9 x 1mb 9 x 1mb 8 x 1 mb 8 x 1 mb SIPP$ 9 x 256 9 X 1mb DIP 411000 44256 41256 4464 4164 Sales Tax: 20% HP LP HP IBM LP IBM HP LP - 50.00 - 55.00 60.00 155.00 180.00 210.00 185.00 210.00 250.00 150.00 170.00 190.00 50.00 60.00 65.00 185.00 215.00 3.50 3.75 2.30 2.50 Overnight Delivery 16 .20 17.00 4.60 5.00 2.80 Tel (02) 427 0011 Fax (02) 428 5460 SILICON CH'P - ACTIVE TRANSMISSION line stereo speakers. Includes preamp. $760.00 . Send SAE to 36 Palmer St, Nambucca Heads, NSW 2448. BUILD A COMPUTER CONTROLLED micro robot with step by step instructions on how to make the electronic interface to connect the robot to a computer. A computer program is also included . Send cheque or money order. for $9.95 to L.R. Barnett, PO Box 187, St Lucia University, Qld 4067. - 16.50 17.40 5.00 5.50 5.20 - Credit Cards Welcome PELHAM 120 80ns 70ns Prices Excluding Tax SILICON CHIP from March to June 1989. Kit consists of PC boards, EPROM and full instructions to complete the project to a professional standard . Loaded from Centronics printer port or PC/XT keyboard . Equivalent commercial units start at around $1 000. For more information , send a 41 c stamp to Don McKenzie, 29 Ellesmere Crescent , Tullamarine 3043. SATFAX: WEATHER SATELLITE picture receiving program for IBM XT/AT. Displays in 64 colours. Needs EGA colour monitor & card, AM demodulator & ADC interface. $45 plus $3 postage . RADFAX2: HF WEATHER FAX, Morse & RTTY receiving program for IBM XT/AT. Needs CGA, SSB HF, FSK/tone decoder. Also "RF2HERC " & "RF2EGA", same as RADFAX2 but Advertising Index Acel Electronics 97 Allied Capacitors 99 Altronics 88-91 Sambor Electronics . 75 Banksia Information Tech . 1 ·1 Board Solutions . IBC Dauner Electronics 73 David Reid Electronics . 13 Dick Smith Electronics 40-45 Electronic Solutions 32,33 Elmeasco . . . . . . . . . . . . OBC Energy Control . 73 Geoff Wood Electronics .... IFC Harbuch Electronics . . . . . . 38 Hycal Instruments ........ 75 Jaycar Electronics 1 7-20 101-104 J.V. Tuners 38 Pacific Microelectronics 108 PC Marketplace 53-68 Pelham . . .. 120 RCS Radio. 100 Rod Irving Electronics 110,111 Tandy Electronics 3,5 suitable for Hercules & EGA cards respectively . $35 plus $3 postage. All programs are on 5.25-inch 360K floppy disc & include full documentation. Only from M. Delahunty, 42 Villiers St, New Farm, Qld 4005. Phone (07) 358 2785. THE HOMEBUILT DYNAMO by Alfred T. Forbes. Published by Todd-Forbes Publishing, Oratia, Auckland, New Zealand . Hard cover, 8½ x 12 inches, 182 pages with over 300 illustrations. ISBN 0-95977 49-0-4. Price $A85 postpaid airmail direct from ToddForbes Publishing, Dept. 03, PO Box 3919, Auckland, New Zealand. Trade enquiries invited . "What a delight this book will be to any lover of anything to do with DIY, ingenuity and devotion to the completion of a job once started. It is the complete pictorial history of how Alfred Forbes built a dynamo to power his house in New Zealand ... Definitely a book to put on your list of wanted Christmas presents". - Practical Electronics.