Silicon ChipContents - August 1990 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: On mechanical & acoustic filters
  4. Vintage Radio: Tuned radio frequency receivers by John Hill
  5. Project: High-Stability UHF Remote Transmitter by Greg Swain
  6. Project: Universal Safety Timer For Appliances by John Clarke
  7. Feature: The Story Of Electrical Energy; Pt.2 by Bryan Maher
  8. Serviceman's Log: It was the last thing I tried by The TV Serviceman
  9. Project: Digital Sine/Square Wave Generator; Pt.2 by John Clarke
  10. Project: Horace The Electronic Cricket by John Clarke
  11. Feature: Computer Bits by Jennifer Bonnithca
  12. Feature: Laservision: High Power Communication by Leo Simpson
  13. Feature: The "Tube" vs. The Microchip by Garry Cratt, VK2YBX
  14. Feature: Remote Control by Bob Young
  15. Back Issues
  16. Subscriptions
  17. Market Centre
  18. Advertising Index
  19. Outer Back Cover

This is only a preview of the August 1990 issue of Silicon Chip.

You can view 57 of the 112 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 Technology Letters, Pt.2 (January 1989)
  • The Story Of Electrical Energy (July 1990)
  • The Story Of Electrical Energy; Pt.2 (August 1990)
  • The Story Of Electrical Energy; Pt.3 (September 1990)
  • The Story Of Electrical Energy; Pt.4 (October 1990)
  • The Story Of Electrical Energy; Pt.5 (November 1990)
  • The Story Of Electrical Energy; Pt.6 (December 1990)
  • The Story Of Electrical Energy; Pt.7 (January 1991)
  • The Story Of Electrical Energy; Pt.8 (February 1991)
  • The Story Of Electrical Energy; Pt.9 (March 1991)
  • The Story Of Electrical Energy; Pt.10 (May 1991)
  • The Story Of Electrical Energy; Pt.11 (July 1991)
  • The Story Of Electrical Energy; Pt.12 (August 1991)
  • The Story Of Electrical Energy; Pt.13 (September 1991)
  • The Story Of Electrical Energy; Pt.14 (October 1991)
  • The Story Of Electrical Energy; Pt.15 (November 1991)
  • The Story Of Electrical Energy; Pt.16 (December 1991)
  • The Story Of Electrical Energy; Pt.17 (January 1992)
  • The Story Of Electrical Energy; Pt.18 (March 1992)
  • The Story Of Electrical Energy; Pt.19 (August 1992)
  • The Story of Electrical Energy; Pt.20 (September 1992)
  • The Story Of Electrical Energy; Pt.21 (November 1992)
  • The Story Of Electrical Energy; Pt.22 (January 1993)
  • The Story of Electrical Energy (April 1993)
  • The Story Of Electrical Energy; Pt.24 (May 1993)
  • The Story Of Electrical Energy; Pt.24 (June 1993)
Items relevant to "Digital Sine/Square Wave Generator; Pt.2":
  • Digital Sine/Square Wave Generator PCB patterns [04108901/2] (Free)
  • Silicon Chip article scan, August 1990 - Digital Sine/Square Wave Generator; Pt.2 (AUD $10.00)
Articles in this series:
  • Digital Sine/Square Wave Generator; Pt.1 (July 1990)
  • Digital Sine/Square Wave Generator; Pt.2 (August 1990)
Articles in this series:
  • Computer Bits (May 1990)
  • Computer Bits (June 1990)
  • Computer Bits (July 1990)
  • Computer Bits (August 1990)
  • Computer Bits (September 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:
  • Remote Control (October 1989)
  • Remote Control (November 1989)
  • Remote Control (December 1989)
  • Remote Control (January 1990)
  • Remote Control (February 1990)
  • Remote Control (March 1990)
  • Remote Control (April 1990)
  • Remote Control (May 1990)
  • Remote Control (June 1990)
  • Remote Control (August 1990)
  • Remote Control (September 1990)
  • Remote Control (October 1990)
  • Remote Control (November 1990)
  • Remote Control (December 1990)
  • Remote Control (April 1991)
  • Remote Control (July 1991)
  • Remote Control (August 1991)
  • Remote Control (October 1991)
  • Remote Control (April 1992)
  • Remote Control (April 1993)
  • Remote Control (November 1993)
  • Remote Control (December 1993)
  • Remote Control (January 1994)
  • Remote Control (June 1994)
  • Remote Control (January 1995)
  • Remote Control (April 1995)
  • Remote Control (May 1995)
  • Remote Control (July 1995)
  • Remote Control (November 1995)
  • Remote Control (December 1995)
~ ;J i-1 ;.....ll :::J lj --- --g :::::::J j..J fit:1 ...J ~ __, ;; I t_ H '-" AUGUST 1990 THIS NEW UHF TRANSMITTER uses a SAW filter so you don't have to make frequency adjustments. Details page 16. FEATURES 32 The Story Of Electrical Energy, Pt.2 by Bryan Maher The quest for greater efficiency 76 Laservision: High Power Communication by L. Simpson Mixing technology with advertising 82 The "Tube" vs. The Microchip by Garry Cratt We compare a vintage shortwave receiver with it modern counterpart PROJECTS TO BUILD 16 High-Stability UHF Remote Transmitter by Greg Swain For DSE & SILICON CHIP remote switch circuits 20 Universal Safety Timer For Appliances by John Clarke Turns off the power after 9 minutes 52 Digital Sine/Square Wave Generator by John Clarke Pt.2: the construction details 66 Horace The Electronic Cricket by John Clarke He's fully house trained & under your command SPECIAL COLUMNS 6 Vintage Radio by John THE "TUBE" VS. the microchip: in the left corner the Collins 51]4 general coverage receiver from the 1950s; in the right the Yaesu FRG-7700. Who won? - see page 82. THE SERVICEMAN tried everything this month (pity the poor cat). So why (Grrr!) wouldn't the picture cooperate by staying on? Turn to page 46. Hill Tuned radio frequency receivers 46 Serviceman's Log by the TV Serviceman It was the last thing I tried 70 Computer Bits by Jennifer Bonnitcha What to do when your computer goes bung; Pt.4 88 Remote Control by Bob Young Bluff body design & automotive aerodynamics DEPARTMENTS 3 Publisher's Letter 4 Mailbag 42 Circuit Notebook 96 Product Showcase 104 Back Issues 2 SILICON CHIP 106 Ask Silicon Chip 108 Notes & Errata 109 Subscription Page 110 Market Centre THIS PROJECT WILL automatically switch off an electrical appliance after 9 minutes unless a reset button is pressed. See page 20.