Silicon ChipAdvertising Index - June 1988 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Decision trees and preamplifiers
  4. Feature: The Way I See It by Neville Williams
  5. Feature: What is Negative Feedback? by Bryan Maher
  6. Vintage Radio: Cleaning up a vintage radio receiver by John Hill
  7. Project: Studio 200 Stereo Control Unit by Leo Simpson & Bob Flynn
  8. Serviceman's Log: Ring out the new, ring in the old by The Original TV Serviceman
  9. Project: Convert Your Car to Breakerless Ignition by Leo Simpson & John Clarke
  10. Project: Automatic Light Controller by Branco Justic
  11. Project: Mega-Fast Nicad Battery Charger by John Clarke & Greg Swain
  12. Feature: Amateur Radio by Garry Cratt, VK2YBX
  13. Subscriptions
  14. Feature: The Evolution of Electric Railways by Bryan Maher
  15. Feature: Digital Fundamentals, Pt.8 by Louis E. Frenzel
  16. Market Centre
  17. Advertising Index
  18. Outer Back Cover

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

You can view 40 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)
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)
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, June 1988 - Studio 200 Stereo Control Unit Pt1 (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)
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:
  • 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)
Articles in this series:
  • Digital Fundamentals, Pt.1 (November 1987)
  • Digital Fundamentals, Pt.2 (December 1987)
  • Digital Fundamnetals, Pt.3 (January 1988)
  • Digital Fundamentals, Pt.4 (February 1988)
  • Digital Fundamentals Pt.5 (March 1988)
  • Digital Fundamentals, Pt.6 (April 1988)
  • Digital Fundamentals, Pt.7 (May 1988)
  • Digital Fundamentals, Pt.8 (June 1988)
  • Digital Fundamentals, Pt.9 (August 1988)
  • Digital Fundamentals, Pt.10 (September 1988)
CEN'I' Cash in your surplus 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 FOR SALE NEARLY 1500 PRINTER buffer kits now sold. Prices start at $39 for a 256K short form kit . All items advertis· ed 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. PLEASE PRINT EACH WORD SEPARATELY, IN BLOCK LETTERS 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ($7.00) 300W INVERTER, EA 9/85, $200. Calculator HP32E $40. 1 00W sub· woofer amplifier and loudspeaker, EA 78/82 , $200. Phone (03) 534 4624 a.h. Name ....... .. ...... ....... ..... ..... ..... ..... ....... ... ..... ..... ...... ... ....... .... . Address ............ ........ .... ..... ..... ...... ... ... ... ....... ..... .. ....... ... . Suburb/Town Postcode ... Enclosed is my cheque or money order for$ ..... Bankcard □ Visa □ .. ..... or please debit my 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. Card No ......................... ... .. ... .. ... .... .... .. .. ..... .. ... .... .... ........ .. .. ... ........ .. .. .. ... ... .. ... .. Signature . . . . . . . . . . . . . . . . . . . . . . . . .............................. . Optimus 304 loudspeaker continued from page 15 15kHz the impedance was below 8 ohms, dipping to a minimum of 4. 7 ohms at lOkHz. Thus the 304s should not present a loading problem to the vast majority of solid state amplifiers. The highest measured impedance was 24.8 ohms at 65Hz. This peak and one that was evident below 14Hz are typical of the double hump response curve that occurs naturally in a reflex or tuned port speaker enclosure. An impedance peak of 17.3 ohms was also apparent at lkHz, this being at the woofer to mid-range cross-over point. Listening tests with signal from a sine wave generator indicated a fairly smooth frequency response across the audio range, the exception being some peakiness in the 2kHz to 3kHz area and some enclosure panel resonance at around 65Hz. Below this, the response tapered off smoothly to about 40Hz. (Note: enclosure panel resonances are virtually impossible to build out of a simple enclosure 96 SILICON CHIP constructed from timber and so this speaker is not alone in this respect}. With music the Optimus 304s have a clean, forwarc. sound and on classical music they made for very pleasant listening, with no indication of being tiring in long lis ~ening sessions. Auditioned against two other pairs of much higher priced speakers they held their own very well indeed and displayed no obvious vices. Because of their higher than average sensitivity [claimed 91dB SPL for 1 watt at 1 metre}, these speakers may be used with amplifiers and receivers with power outputs of modest levels, say from about 10 watts per channel, and still produce good sound levels. The Optimus 304s come with a 5-year warranty and are priced at $229.95 each. At this price we consider them to be surprisingly good value for money. They are well worth consideration by anybody wanting to purchase a larger 3-way system without breaking the bank. (B. F.} le Advertisers Index Our advertisers are vital to the success of SILICON CHIP. Please give them your support. Altronics . . . 52·55 Arista Electronics .. 1 4 Avtek . . . IBC David Reid . 67 Dick Smith Electronics . 36,37 70,71 Elmeasco . IFC Geoff Wood Electronics .. 43 Jaycar Electronics . 20-27 Kenwood Australia . . OBC RCS Radio .. 85 Rod Irving Electronics . 61 Scan Audio . 79 PC Boards Printed circuit boards for SILICON CHIP projects are made by: • RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491. • Jemal Products, 5 Forge St, Welshpool, 6106. WA 6161. Phone (09) 350 5555.