Silicon ChipMarket Centre - September 1997 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Make the Internet free of sales tax
  4. Feature: Unravelling Saturn's Secrets by Sammy Isreb
  5. Feature: Hifi On A Budget by Owen Davies & Julian Edgar
  6. Project: Multi-Spark Capacitor Discharge Ignition System by John Clarke
  7. Serviceman's Log: The things I do for money by The TV Serviceman
  8. Order Form
  9. Book Store
  10. Project: Building The 500W Audio Power Amplifier; Pt.2 by Leo Simpson & Bob Flynn
  11. Project: A Video Security System For Your Home by Branco Justic
  12. Back Issues
  13. Feature: Computer Bits by Jason Cole
  14. Vintage Radio: The 5-valve Airking console receiver by John Hill
  15. Product Showcase
  16. Project: PC Card For Controlling Two Stepper Motors by Rick Walters
  17. Notes & Errata: Remote Controlled Gates for Your Home, August 1997
  18. Market Centre
  19. Advertising Index
  20. Outer Back Cover

This is only a preview of the September 1997 issue of Silicon Chip.

You can view 29 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.

Items relevant to "Multi-Spark Capacitor Discharge Ignition System":
  • Multi-Spark Capacitor Discharge Ignition System PCB pattern (PDF download) [05309971] (Free)
Items relevant to "Building The 500W Audio Power Amplifier; Pt.2":
  • 500W Audio Power Amplifier PCB pattern (PDF download) [01208971] (Free)
  • 500W Audio Power Amplifier panel artwork (PDF download) (Free)
Articles in this series:
  • A 500 Watt Audio Power Amplifier Module (August 1997)
  • Building The 500W Audio Power Amplifier; Pt.2 (September 1997)
  • Building The 500W Audio Power Amplifier; Pt.3 (October 1997)
Articles in this series:
  • Computer Bits (July 1989)
  • Computer Bits (August 1989)
  • Computer Bits (September 1989)
  • Computer Bits (October 1989)
  • Computer Bits (November 1989)
  • Computer Bits (January 1990)
  • Computer Bits (April 1990)
  • Computer Bits (October 1990)
  • Computer Bits (November 1990)
  • Computer Bits (December 1990)
  • Computer Bits (January 1991)
  • Computer Bits (February 1991)
  • Computer Bits (March 1991)
  • Computer Bits (April 1991)
  • Computer Bits (May 1991)
  • Computer Bits (June 1991)
  • Computer Bits (July 1991)
  • Computer Bits (August 1991)
  • Computer Bits (September 1991)
  • Computer Bits (October 1991)
  • Computer Bits (November 1991)
  • Computer Bits (December 1991)
  • Computer Bits (January 1992)
  • Computer Bits (February 1992)
  • Computer Bits (March 1992)
  • Computer Bits (May 1992)
  • Computer Bits (June 1992)
  • Computer Bits (July 1992)
  • Computer Bits (September 1992)
  • Computer Bits (October 1992)
  • Computer Bits (November 1992)
  • Computer Bits (December 1992)
  • Computer Bits (February 1993)
  • Computer Bits (April 1993)
  • Computer Bits (May 1993)
  • Computer Bits (June 1993)
  • Computer Bits (October 1993)
  • Computer Bits (March 1994)
  • Computer Bits (May 1994)
  • Computer Bits (June 1994)
  • Computer Bits (July 1994)
  • Computer Bits (October 1994)
  • Computer Bits (November 1994)
  • Computer Bits (December 1994)
  • Computer Bits (January 1995)
  • Computer Bits (February 1995)
  • Computer Bits (March 1995)
  • Computer Bits (April 1995)
  • CMOS Memory Settings - What To Do When The Battery Goes Flat (May 1995)
  • Computer Bits (July 1995)
  • Computer Bits (September 1995)
  • Computer Bits: Connecting To The Internet With WIndows 95 (October 1995)
  • Computer Bits (December 1995)
  • Computer Bits (January 1996)
  • Computer Bits (February 1996)
  • Computer Bits (March 1996)
  • Computer Bits (May 1996)
  • Computer Bits (June 1996)
  • Computer Bits (July 1996)
  • Computer Bits (August 1996)
  • Computer Bits (January 1997)
  • Computer Bits (April 1997)
  • Windows 95: The Hardware That's Required (May 1997)
  • Turning Up Your Hard Disc Drive (June 1997)
  • Computer Bits (July 1997)
  • Computer Bits: The Ins & Outs Of Sound Cards (August 1997)
  • Computer Bits (September 1997)
  • Computer Bits (October 1997)
  • Computer Bits (November 1997)
  • Computer Bits (April 1998)
  • Computer Bits (June 1998)
  • Computer Bits (July 1998)
  • Computer Bits (November 1998)
  • Computer Bits (December 1998)
  • Control Your World Using Linux (July 2011)
Items relevant to "PC Card For Controlling Two Stepper Motors":
  • PC Stepper Motor Drivers DOS software (Free)
  • PC Card for Controlling Two Stepper Motors PCB pattern (PDF download) [07208971] (Free)
MARKET CENTRE Cash in your surplus gear. Advertise it here in Silicon Chip. CLASSIFIED ADVERTISING RATES FOR SALE Advertising rates for this page: Classified ads: $10.00 for up to 12 words plus 50 cents for each additional word. Display ads (casual rate): $25 per column centimetre (Max. 10cm). Closing date: five weeks prior to month of sale. C COMPILERS: Ever ything you need to develop C and ASM software for 68HC08, 6809, 68HC11, 68HC12, 68HC16, 8051/52, 8080/85, 8086 or 8096: $140.00 each. Macro Cross Assemblers for these CPUs + 6800/01/03/05 and 6502: $140.00 for the set. Debug monitors: $70 for 6 CPUs. All compilers inc ‘HC12, XASMs and monitors: $480. 8051/52 or 80C320 Simulator (fast): $70. Disassemblers for 12 CPUs only $75. Try the new C-FLEA Virtual Machine for small CPUs, build a “C-Stamp”. Demo disk: FREE. All prices + $5 p&p. GRAN­ TRONICS PTY LTD, PO Box 275, Wentworthville 2145. Ph/Fax (02) 9631 1236 or Internet: http://www. mpx.com.au/~lgrant To run your classified ad, print it clearly on a separate sheet of paper, fill out the form below & send it with your cheque or credit card details to: Silicon Chip Classifieds, PO Box 139, Collaroy, NSW 2097. Or fax the details to (02) 9979 6503. _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________  Bankcard    Visa Card    Master Card Card No. ✂ Enclosed is my cheque/money order for $­__________ or please debit my Signature­­­­­­­­­­­­__________________________  Card expiry date______/______ Name ______________________________________________________ Street ______________________________________________________ Suburb/town ___________________________ Postcode______________ 94  Silicon Chip I/O CARD FOR APPLE II/e: (8 Digital and 1 Analogue I/O). Instruc­tions and applications $40. Magazine Binders (15) 4 Blue and 11 Brown, in good condition $75. 014 075819 or (02) 9896 0838 AH. MICROCRAFT IS NOW ON THE WEB: Dunfield (DDS) products are now available ex-stock at a new low price; please ask for our catalogue. Micro C, the affordable “C” compiler for embedded applications. Versions for 8051/52, 8086, 8096, 68HC08, 6809, 68HC11 or 68HC16 $139.95 each + $3 p&h • EMILY52 is a PC based 8051/52 high speed simulator $69.95 + $3 p&h • DDS demo disks $7 + $3 p&h • VHS VIDEO from the USA (PAL) “CNC X-Y-Z using car alter­nators” (uses car alternators as cheap power stepper motors!) $49.95 + $6 p&h (includes diagrams) • Fixed price electronic design and PCB layout • Credit cards accepted • All goods sent registered mail • Call Bob for more de­ t ails. MICRO­CRAFT, PO Box 514, Concord NSW 2137. Phone (02) 9744 5440 or fax (02) 9744 9280. http://www.micro.com.au email sales<at>micro.com.au 9TH BIRTHDAY SPECIALS !!!!!!!!! PCB VIDEO CAMERA MODULES $69 with Board or Pinhole Japanese Optical Glass (no plastic) Lenses. HOME CCTV INTERFACE PACKAGE See & Listen on all TVs & Record on all VCRs connected to TV antenna system, Commercial 400 Line C Mount Camera with In-built Microphone/Pre Amp, Lens, Mounting Bracket, 20m Plug In Cable and Modulator Mixer Module (see p74 EA July) LIMITED QUANTITY! Only! $199. 12-15 VDC Monitor with Reg DC O/P, PCB module & 100' Cable Only! $199. Tiny Cameras in Lightweight Cases Only! $137. 12VDC Video Monitors Only! $99. WIRELESS Tx or Rx Modules Only! $29. PCB Audio Modules from $20. INFRARED ILLUMINATORS PCB, HOUSING & 50 LED Kit Only! $29. 10cm x 10cm PCB & 180 LED Kit $119. Complete 240vac Lamp $149. A REAL DUMMY CAMERA! Real Case, Lens & Bracket, may be converted to a REAL CAMERA Only! $69. 3200 millicandela Super Bright Red LEDs from 50 cents. Flashing Red, Green, Yellow, Orange LEDs $1. PCB Camera Modules 420/460 Line 0.05 lux $144/$177. DIGITAL SIGNAL PROCESSING 470 TVL COLOUR CAMERAS from $499 28 x 28mm PCB Modules THE TINIEST! HIGH RESOLUTION 570 TVL External Hor & Vert Sync CAMERAS Only! $299. Dome Ceiling Cameras $197. Colour Modules & Cameras $449. Quad Screen Processors from $410. Colour Quads 512 x 512 Only! $999. 74mW Infra Red LEDs from 48 cents! BEFORE YOU BUY! Ask for our Detailed, Illustrated Price List & Application Notes. Also available CCTV Technical, Design, & Reference Manual. Prices include tax. Discounts available! Allthings Sales & Services 08 9349 9413 fax 08 9344 5905. MicroZed have 8-pin 6 I/O 12C508 at $3.66 ea. 1 off price quartz window version $24.40. HOMEMADE GENERATORS: how to instructions. Eight pages free text and colour photos on the Internet at: http://www.onekw.co.nz/ A SIMPLE PIC84 PROGRAMMER: LED model 6 lights $70, LCD model 16 x 1 char. $80, pp $5. Others available. EST Electronics (02) 9789 3616. Fax (02) 9718 4762. MicroZed Computers BASIC STAMPS & PIC Tools With third party supporting products, all in stock. Easy to learn, easy to use sophisticated CPU based controllers. PO Box 634, ARMIDALE 2350 (296 Cook’s Rd) Ph (067) 72 2777 – may time out to Mobile 014 036775 Fax (067) 72 8987 http://www.microzed.com.au/~microzed Credit cards OK. Send two 45c stamps for info WEBSITE WITH FREE CIRCUITS http://www.airborn.com.au Also: Programmers for 89C2051 and 89C51: $188 Eval. Kit: $233 Romem: Free! (02) 9925 0325 ELECTRONICS AirBorn MicroZed new Web page address: http://www.microzed.com.au/~microzed DATAMAN EPROM PROGRAMMERS: Dataman S4 world’s leading handheld programmer/ROM emulator, onscreen editor, over 1500 device types including EPROMS/EEPROM/Flash up to 8Mbits. Dataman-48 up to 4-pin DIL. Adapters for PLCC, etc. DOS/Win software, free updates. Call or email for details. DIGITAL GRAPHICS P/L. Phone (02) 9888 3105 dgriffo<at>ozemail.com.au http://www.ozemail.com.au/~dgriffo SATELLITE EQUIPMENT: mesh antenna, 2.3 metre (7 foot 6 inch) in carton by Superior Antenna in USA, $600 LNBF 25K, $100 and Echostar low threshold LT-830 receiver $300 several sets or split. Phone 9484 3847 (Business Hours). COMPONENT STORAGE RACKS: accommodate components such as ICs, trimpots, TO-220s, etc., whilst still in their anti-static tubes. Features: compact size, anti-static protection until ready to use, stackable side to side or top to bottom, capacity of 2880 40-pin ICs to 18,000 8-pin ICs, solid construction, index­ i ng matrix provided, anti-static tubes supplied if required. V.E.E. SYS. Ph/Fax (03) 5342 0510. PCBs MADE, ONE OR MANY. Low prices, hobbyists welcome. Sesame Electronics, Ph/Fax (02) 9554 9760. sesame<at>nettrade.com.au 68HC11 & 68HC05 DEVELOPMENT SYSTEMS: Oztechnics, PO Box 38, Illawong, NSW 2234. Phone (02) 9541 0310, fax (02) 9541 0734. http://www.oztechnics.com.au/ H.P. 3455A MULTIMETER: 61/2-digit $400 ONO. (063) 51 4368. Lithgow NSW. MicroZed have 5V UPS. Uses 2 x AA nickel cadmium cells. Silicon Chip Binders ★  Heavy board covers with 2-tone green vinyl covering REAL VALUE AT $11.95 PLUS P &P ★  Each binder holds up to 14 issues ★ SILICON CHIP logo printed in gold-coloured lettering on spine & cover Price: $A11.95 plus $3 p&p each (NZ $8 p&p). Just fill in & mail the handy order form in this issue; or fax (02) 9979 6503; or ring (02) 9979 5644 & quote your credit card number. September 1997  95 14 Model Railway Projects Shop soiled but HALF PRICE! Our stocks of this book are now limited. All we have left are newsagents’ returns which means that they may be slightly shop soiled or have minor cover blemishes. Otherwise, they're undamaged and in good condition. SPECIAL CLEARANCE PRICE: $3.95 + $3 P&P (Aust. & NZ) This book will not be reprinted Yes! Please send me _____ copies of 14 Model Railway Projects at the special price of $A3.95 + $A3 p&p (p&p outside Aust. & NZ $A6). Enclosed is my cheque/money order for $­A__________ or please debit my Advertising Index Airborn Electronics......................95 Daycom.......................................77 Dick Smith Elecronics.. 10,11,34-37 Electronic Valve & Tube Co..........77 Harbuch Electronics....................41 Instant PCBs................................95 Jaycar ............................IFC, 45-52 Kits-R-US.....................................96 MicroZed Computers...................95 Model Railways Book..................96 Oatley Electronics..........................3 Rod Irving Electronics .......... 86-90 ❏ Bankcard   ❏  Visa Card   ❏ MasterCard Scan Audio..................................43 Card No. Silicon Chip Back Issues....... 68-69 Signature­­­­­­­­­­­­___________________________  Card expiry date______/______ Silicon Chip Bookshop.................53 Name Street ______________________________________________________ PLEASE PRINT ______________________________________________________ Suburb/town_________________________________ Postcode_________ Silicon Chip Binders................OBC Silicon Chip Software..................29 Silicon Chip Wallchart..............OBC Send your order to: SILICON CHIP, PO Box 139, Collaroy, NSW 2097; or fax your order to (02) 9979 6503; or ring (02) 9979 5644 and quote your credit card number (Bankcard, Visa Card or MasterCard). Smart Fastchargers.....................43 Telstra..........................................79 WAR Audio..................................78 Microprocessor For Digital Effects Unit This is the 68HC705-C8P pro­ gramm­ed micro­pro­cessor IC for the Digital Effects Unit (see Feb­. 1995). Price: $45 + $6 p+p Payment by cheque, money order or credit card to: Silicon Chip Pub­ lica­ tions, PO Box 139 Collaroy 2097. Phone (02) 9979 5644; Fax (02) 9979 6503. 96  Silicon Chip Circuit Ideas Wanted Do you have a good circuit idea. If so, why not sketch it out, write a brief description of its operation & send it to us. Provided your idea is workable & original, we’ll publish it in Circuit Notebook & you’ll make some money. We pay up to $60 for a good circuit but don’t make it too big please. Send your idea to: Silicon Chip Publications, PO Box 139, Collaroy, 2097. Zoom Magazine.........................IBC _____________________________ PC Boards Printed circuit boards for SILICON CHIP projects are made by: •  RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 9587 3491. •  Marday Services, PO Box 19-189, Avondale, Auckland, NZ. Phone (09) 828 5730.