Silicon ChipMarket Centre - July 1988 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: The widening scope of activity for electronics enthusiasts
  4. Feature: Amplifier Headroom: Is It a Con? by Leo Simpson
  5. Vintage Radio: Checking and repairing the valves by John Hill
  6. Review: Amcron MA-1200 Power Amplifier by Bob Flynn
  7. Feature: The Way I See it by Neville Williams
  8. Project: Booster for TV & FM Signals by Branco Justic
  9. Serviceman's Log: Sounding out a video recorder by The Original TV Serviceman
  10. Project: Studio 200 Stereo Control Unit by Greg Swain & Bob Flynn
  11. Feature: National Semiconductor's LM833 Op Amp by Leo Simpson
  12. Project: Build the Discolight by John Clarke & Leo Simpson
  13. Feature: Amateur Radio by Garry Cratt, VK2YBX
  14. Feature: What is Negative Feedback? by Bryan Maher
  15. Project: Tone Burst Source for Amplifier Testing by Leo Simpson & John Clarke
  16. Feature: The Evolution of Electric Railways by Bryan Maher
  17. Subscriptions
  18. Market Centre
  19. Advertising Index
  20. Outer Back Cover

This is only a preview of the July 1988 issue of Silicon Chip.

You can view 42 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 Way I See It (November 1987)
  • The Way I See It (December 1987)
  • The Way I See It (January 1988)
  • The Way I See It (February 1988)
  • The Way I See It (March 1988)
  • The Way I See It (April 1988)
  • The Way I See It (May 1988)
  • The Way I See It (June 1988)
  • The Way I See it (July 1988)
  • The Way I See It (August 1988)
  • The Way I See It (September 1988)
  • The Way I See It (October 1988)
  • The Way I See It (November 1988)
  • The Way I See It (December 1988)
  • The Way I See It (January 1989)
  • The Way I See It (February 1989)
  • The Way I See It (March 1989)
  • The Way I See It (April 1989)
  • The Way I See It (May 1989)
  • The Way I See It (June 1989)
  • The Way I See It (July 1989)
  • The Way I See It (August 1989)
  • The Way I See It (September 1989)
  • The Way I See It (October 1989)
  • The Way I See It (November 1989)
  • The Way I See It (December 1989)
Items relevant to "Studio 200 Stereo Control Unit":
  • Silicon Chip article scan, July 1988 - Studio 200 Stereo Control Unit Pt2 (AUD $10.00)
  • Silicon Chip article scan, June 1988 - Studio 200 Stereo Control Unit Pt1 (AUD $10.00)
  • Silicon Chip article scan, July 1988 - Studio 200 Stereo Control Unit Pt2 (AUD $10.00)
Articles in this series:
  • Studio 200 Stereo Control Unit (June 1988)
  • Studio 200 Stereo Control Unit (July 1988)
  • Modifying The Studio 200 Amplifier (January 1990)
Items relevant to "Build the Discolight":
  • Silicon Chip article scan, July 1988 - Discolight Pt.1 (AUD $10.00)
Articles in this series:
  • Build the Discolight (July 1988)
  • Building the Discolight, Pt.2 (August 1988)
  • Dimming Controls For The Discolight (October 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:
  • What is Negative Feedback? (April 1988)
  • What is Negative Feedback? (June 1988)
  • What is Negative Feedback? (July 1988)
  • What Is Negative Feedback? (September 1988)
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)
CENl Cash in your sutplus gear. Advertise it here in Silicon Chip. Advertising rates for this page: Classified ads - $7.00 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. To run your own classified ad. put one word on each of the lines below and send this form with your payment to: Silicon Chip Classifieds. PO Box 139, Collaroy Beach. NSW 2097. PLEASE PRINT EACH WORD SEPARATELY, IN BLOCK LETTERS 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ($7.00) 16 ($7.40) 17 ($7.80) 18 ($8.20) 19 ($8.60) 20 ($9.00) Name .......... .......... ... ... .... ... ....... ... ... ... ...... ..... .... ..... .. .. ....... ....... .... ... ............... .. ... . Address ..... ............. ..... ......... .......... ...... ..... ..... ..... ..... ... ............. ........ ..... ........... .. .. Suburb/Town ............ .......... ...... ......................... .. ..... .. ...... Postcode .............. .. Enclosed is my cheque or money order for$ ...... ....... .. .... ..... ....... .... .. or please debit my Bankcard D Visa Card D Card No ....... ...................... .... ... ........... ...... ..... ..... ... ....... ..... .......... ... ..... .. ....... .... ... Signature .. ... .......... ........... .. .. ..... .... .... ... . FOR SALE NEARLY 1500 PRINTER buffer kits now sold. Prices start at $39 for a 256K short form kit. All items advertised are in stock. Dealer enquiries welcome. Bulk discounts. Schools, Govt. Depts. orders accepted. Oh yes!! IBM compatible. Australian designed and manufactured. Ideal project' for user groups and students. For a free catalog send a 37c stamp to: Don McKenzie, 29 Ellesmere Crescent, Tullamarine 3043. KIT FIX SERVICE - Having trouble getting your EA/ETI/SC kit to work? Phone (03) 7 49 3480 for estimate or send kit to K. Hunter, 5 Yatama Crescent, Werribee 3030 . OATLEY ELECTRONICS - here we list some more of our kits. Ultrasonic Burglar Alarm (SILICON CHIP, May 1988): this unit features a quality crystal locked ultrasonic movement detector. Can be used as a detector only or as a self-standing alarm. Has provision for bonnet and boot wiring. 96 SILICON CHIP Advertisers Index Our advertisers are vital to the success of SILICON CHIP. Please give them your support. Altronics ............... .... ..... 52-55 Arista Electronics ..... .. .... .. .... 21 Avtek .. ... ... ........................ IBC Bose ........ .. .... ......... .. ......... 39 David Reid ..... ............. ........ 1 5 Dick Smith Electronics ........ 8,9, 68,69,95 Geoff Wood Electronics .... .... 77 Jaycar Electronics .......... 22-29 J.V. Tuners ......................... 38 Kenwood Australia ............ OBC Oatley Electronics .......... 37,96 RCS Radio .... ...................... 21 Rod Irving Electronics ..... ...... 81 Scan Audio .. .. ............... .... .. 83 Sermotech .. .. ...................... 93 Tandy Electronics .... ........... IFC PC Boards Printed circuit boards tor SILICON CHIP projects are made by: Optional flashing light and back up battery operation. Easily connected to our UHF Remote Key. You don't even need the relay supplied with the UHF kit, however you can use it for the blinker flashing or perhaps for switching a high power siren from the ultrasonic alarm. Prices are as follows: PCB plus onboard parts $25 .90; optional light flasher/back up battery circuit $7 .50; pair of transducers $13.50; transducer mounting kit $2.50; piezo screamer $16.00; 1.2Ah gel battery $24.90; relay kit $3.80. Add $2.50 p&p ($4.00 p&p tor battery). Shock Detecting Car Alarm (ETI, March 1988): has low level vibration detector to detect gentle knocks. Flashes the car's blinkers and sounds the horn twice. Has high level detector that activates the full alarm period . Provision tor activation from existing door switches or additional bonnet/boot switches. Has provision tor external detectors. Can be wired into an existing alarm in order to add vibration detection, blinker flashing and/or pulsed horn sounding. Two heavy duty relays for blinker/horn provided. An incredibly versatile unit! PCB and • RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491. • Jemal Products, 5 Forge St, Welshpool, WA 6106. Phone (09) 350 5555. • Marday Services, 2139 Great North Rd, Avondale, Auckland, NZ. Phone 88 5730. components kit at only $32.95 plus $3.00 p&p. The Untouchable Bike Alarm (ETI, May 1988): this small and totally selfcontained alarm is simply firmly attached to the object you wish to protect. Use it tor your bicycle, motorbike, boat trailer etc. Triggered by vibration. Single barrel key operation. Negligible battery consumption means that the battery can last for up to its full shelf life. Can drive piezospeakers, piezo buzzers, relays, speakers and piezo screamers. Doubles up as simple vibration detector. PCB and components kit at only $14.95; piezo buzzer $2.70; piezo screamer $16.00. P&p $2.50. For address and ordering procedure see our advert on page 37.