Silicon ChipContents - July 1993 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Old textbooks & data books are valuable
  4. Feature: The Keck Optical Telescope Pt.1 by Bob Symes
  5. Order Form
  6. Review: Tektronix TDS 320 100MHz Digital Scope by Leo Simpson
  7. Feature: Programming The Motorola 68HC705C8 by Barry Rozema
  8. Feature: Data: The ISD1016 Voice Recorder IC by Darren Yates
  9. Subscriptions
  10. Project: Build A Single Chip Message Recorder by Darren Yates
  11. Project: Light Beam Relay Extender by Darren Yates
  12. Serviceman's Log: When it looks easy, it often ain't by The TV Serviceman
  13. Project: Build An AM Radio Trainer; Pt.2 by Marque Crozman & Leo Simpson
  14. Project: Windows-Based Digital Logic Analyser; Pt.2 by Jussi Jumppanen
  15. Product Showcase
  16. Project: A Low-Cost Quiz Game Adjudicator by Darren Yates
  17. Feature: Remote Control by Bob Young
  18. Feature: Amateur Radio by Garry Cratt, VK2YBX
  19. Vintage Radio: In the good ol' days of my childhood by John Hill
  20. Back Issues
  21. Notes & Errata: Nicad Cell Discharger, May 1993
  22. Market Centre
  23. Advertising Index
  24. Outer Back Cover: Nilsen Instruments

This is only a preview of the July 1993 issue of Silicon Chip.

You can view 37 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 Keck Optical Telescope Pt.1 (July 1993)
  • The Keck Optical Telescope; Pt.2 (August 1993)
Articles in this series:
  • Programming The Motorola 68HC705C8 (July 1993)
  • Programming the Motorola 68HC705C8 (October 1993)
  • Programming The 68HC705C8 Microcontroller (December 1993)
Items relevant to "Build A Single Chip Message Recorder":
  • Single-Chip Message Recorder PCB pattern (PDF download) [01104931] (Free)
Items relevant to "Light Beam Relay Extender":
  • Light Beam Relay Extender PCB pattern (PDF download) [03106931] (Free)
Items relevant to "Build An AM Radio Trainer; Pt.2":
  • Silicon Chip article scan, July 1993 - AM Radio Trainer Pt2 (AUD $10.00)
  • Silicon Chip article scan, June 1993 - AM Radio Trainer Pt1 (AUD $10.00)
  • AM Radio Trainer PCB Pattern [06107931] (Free)
  • Silicon Chip article scan, July 1993 - AM Radio Trainer Pt2 (AUD $10.00)
Articles in this series:
  • Build An AM Radio Trainer; Pt.1 (June 1993)
  • Build An AM Radio Trainer; Pt.2 (July 1993)
Articles in this series:
  • Windows-Based Digital Logic Analyser; Pt.1 (June 1993)
  • Some customers can be a real pain (June 1993)
  • Windows-Based Digital Logic Analyser; Pt.2 (July 1993)
Items relevant to "A Low-Cost Quiz Game Adjudicator":
  • Low-Cost Quiz Game Adjudicator PCB pattern (PDF download) [08106931] (Free)
Articles in this series:
  • Remote Control (May 1993)
  • Remote Control (June 1993)
  • Remote Control (July 1993)
  • Remote Control (August 1993)
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)
Vol.6, No.7; July 1993 FEATURES   4 The Keck Optical Telescope, Pt.1 by Bob Symes The world’s biggest optical telescope 18 Tektronix TDS 320 100MHz Digital Scope by Leo Simpson A high performance digital scope that’s easy to use 22 Programming the Motorola 68HC705C8 by Barry Rozema Lesson 1: programming models & flow charts 26 Data: The ISD1016 Voice Recorder IC by Darren Yates New analog chip requires no battery backup BASED ON A single IC, this project records up to 16 seconds of audio using a new sound chip that retains the recording even when the power is turned off – see page 32. PROJECTS TO BUILD 32 Build A Single Chip Message Recorder by Darren Yates Records up to 16 seconds of audio 38 Light Beam Relay Extender by Darren Yates It doubles the range of the Light Beam Relay 53 Build An AM Radio Trainer, Pt.2 by Marque Crozman Construction & alignment 60 Windows-Based Digital Logic Analyser, Pt.2 by Jussi Jumppanen Construction & software installation 70 A Low-Cost Quiz Game Adjudicator by Darren Yates It tells you who pressed the button first SPECIAL COLUMNS IF YOU’VE EVER wanted to risk all the prizes & go for the jackpot, then this is the project for you. It’s called the Quizmaster & it will indicate which of four players pressed the button first. 30 Serviceman’s Log by the TV Serviceman When it looks easy, it often ain’t 80 Remote Control by Bob Young Unmanned aircraft – current models in service 84 Amateur Radio by Garry Cratt Antenna tuners: why they are useful 86 Vintage Radio by John Hill In the good ol’ days of my childhood DEPARTMENTS   2   4 10 16 65 Publisher’s Letter Mailbag Order Form Circuit Notebook Product Showcase 90 92 94 95 96 Back Issues Ask Silicon Chip Notes & Errata Market Centre Advertising Index DESPITE ITS APPARENT circuit complexity, the Digital Logic Analyser is easy to build. In Pt.2 this month, we conclude with details of the construction & software installation. July 1993  1