Silicon ChipMarket Centre - August 1995 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Keep those letters coming
  4. Feature: Electronic Diesel Engine Management by Julian Edgar
  5. Feature: 133MHz Pentium Processor Now Available by Silicon Chip
  6. Project: Vifa JV-60 2-Way Bass Reflex Loudspeaker System by Leo Simpson
  7. Project: A Fuel Injector Monitor For Cars by Rick Walters & Leo Simpson
  8. Project: A Gain-Controlled Microphone Preamp by John Clarke
  9. Serviceman's Log: It took a little longer than usual by The TV Serviceman
  10. Review: Bookshelf by Silicon Chip
  11. Project: Audio Lab: A PC-Controlled Audio Test Instrument; Pt.1 by Roger Kent
  12. Order Form
  13. Project: Build The Mighty-Mite Powered Loudspeaker by John Clarke
  14. Feature: Computer Bits by Geoff Cohen
  15. Project: Build A 6-12V Alarm Screamer Module by Leo Simpson
  16. Vintage Radio: A couple of odd receiver repairs by John Hill
  17. Back Issues
  18. Product Showcase
  19. Notes & Errata: Ask Silicon Chip - Walkaround Throttle, May 1995
  20. Book Store
  21. Market Centre
  22. Advertising Index
  23. Outer Back Cover

This is only a preview of the August 1995 issue of Silicon Chip.

You can view 31 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 "A Gain-Controlled Microphone Preamp":
  • Gain Controlled Microphone Preamp [01207951] (PCB Pattern, Free)
Articles in this series:
  • Audio Lab: A PC-Controlled Audio Test Instrument; Pt.1 (August 1995)
  • Audio Lab: A PC-Controlled Audio Test Instrument; Pt.2 (September 1995)
Items relevant to "Build The Mighty-Mite Powered Loudspeaker":
  • 1W Audio Amplifier PCB patterns (PDF download) [01305951/2] (Free)
Items relevant to "Computer Bits":
  • DOS software for Computer Bits, August 1995 (DISKINFO.EXE) (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. To run your classified ad, print it clearly in the space below or on a separate sheet of paper, fill out the form & 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) 979 6503. FREE TO A GOOD HOME: same address for 21 years.You have read my ads for years and done nothing. My exciting new micro development kit products leave the others dead in the water. This month my PROMO disk is free. Just ask. Don McKenzie, 29 Ellesmere Cres­cent, Tullamarine 3043. Ph (03) 9338 6286 or 019 93 9799. _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ TENDER OFFICIAL RADIO MANUALS, trade journals telephone parts morse keys. 60ft tower, TH7DXCC tribander, hifi amps, meters earphones. Catalogue 85c. Hadgraft, 17 Paxton Street, Holland Park Qld 4121. AH (07) 397 3751. COMPLETE WORKSHOP PROGRAM: suit IBM compatible 386 or better computer. Handles: Stock Control, Customer Records, Debits, Credits, Faults, Manuals and Phone Directory. For demo disk, ring Jack Albers Electronics & Software Development on (045) 71 1640. WEATHER FAX programs for IBM compatibles *** “RADFAX2” $35 is a high resolution, shortwave weather fax, Morse & Rtty receiving program. Needs SSB HF radio & Radfax decoder. *** “MAXISAT” Version 2.3 $75 is a NOAA, Meteor & GMS weather satellite picture receiving program, lots of features, needs WEATHERFAX card, 2Mb of Enclosed is my cheque/money order for $­__________ or please debit my RCS RADIO PTY LTD Card No. ✂ ❏ Bankcard   ❏ Visa Card   ❏ Master Card Signature­­­­­­­­­­­­__________________________ Card expiry date______/______ Name ______________________________________________________ Street ______________________________________________________ Suburb/town ___________________________ Postcode______________ 94  Silicon Chip RCS Radio Pty Ltd is the only company that manufactures and sells every PC board and front panel published in SILICON CHIP, ETI and EA. RCS Radio Pty Ltd, 651 Forest Rd, Bexley 2207. Phone (02) 587 3491 EMS memory & 1024 x 768 SVGA card. Programs are on 5.25-inch or 3.5-inch disks (state which) & include documentation. Add $3 for postage. Only from M. Delahunty, 42 Villiers St, New Farm, Qld 4005. Phone (07) 358 2785. CHEAP HEATSHRINK TUBING: Australian made, red, black, blue, white, clear, 2.4mm/$1.10pm, 3.2/$1.30, 4.8/$1.70, 6.4/$2.10, 9.5/$2.30, 12.7/$2.70, 19/$3.70, 25.4/$5.10. P&P $3.00 up to 10 metres. Free data sheet. DOMCOR DISTRIBUTORS, 67 King Road, Beechboro, WA 6063. MicroZed has in stock NewMicro 68HC11 board, resident FORTH, with alternative BASIC, Small C and Assembler supplied. YOUR UNUSUAL PARTS source: UCN5804B, DS1620, DS1202, DS­ 2401, DS1215, DS1232, UGN3503U, UDN2998W, UDN2993B, MAX038, MAX691, ISD2590, IR LEDs, PCB mounted switches, latest remote control decoder chip, & more. With data sheets. DIY Electronics, tel/fax: (058) 62 1915. MICROCRAFT PRESENTS: Dunfield (DDS) products are now available in Australia. Micro C, the affordable “C” compiler for embedded applications. Versions for 8051/52, 8086, 8096, 68HC08, 6809, 68HC11 or 68HC16 $149.95 each + $3 p&h • Now on special is the SDK, a package of ALL the DDS “C” compilers for $410 + $6 p&h (save $139) • 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 alternators as cheap power stepper motors!) $49.95 + $6 p&h (includes diagrams) • Device programming EPROMs/PALs etc from $1.50 (inc label). We use and recommend the HILO ALL-07 Universal Programmer • Fixed price PCB layout & photoplots. We use and recommend PROTEL For Windows EDA tools • Credit cards accepted • Call Bob for more de­tails. MICROCRAFT, PO Box 514, Concord, NSW 2137. Phone (02) 744 5440 or Fax (02) 744 9280. C COMPILERS: everything you need to develop C and ASM software for 68HC08, 6809, 68HC11, 68HC16, 8051/52, 8080/85, 8086 or 8096: MEMORY & DRIVES EX. TAX PRICES AT JULY, 1995 SIMM (all 70ns) Parity/No Parity 1Mb 30-pin $64/58 4Mb 30-pin $250/215 2Mb 72-pin $151/135 4Mb 72-pin $250/232 8Mb 72-pin $515/452 16Mb 72-pin $850/765 32Mb 72-pin $1530/1700 MAC 8Mb P’BOOK CO-PROCESSORS 387S/DX to 40 $450 $90 LASER PRINTER HP with 2Mb $200 COMPAQ CONTURA 8Mb $544 Parallax Basic Stamp DRAM DIP 1Mb x 1 70ns DIP $9.00 256 x 4 70ns DIP $8.10 256 x 16 70ns DIP $55.00 IBM PS.2 THINKPAD L40/N33 8Mb 4Mb $590 $300 TOSHIBA 3100SX 2100/50 4Mb 8Mb $275 $590 SUN SPARC ELC 16Mb SPARC 10/20 64Mb $850 $3872 DRIVES – SEAGATE 545Mb 14ms 3yr wty $280 850Mb 11ms 3yr wty $355 1052Mb 9ms 5yr wty $535 Sales tax 21%. Overnight delivery. Credit cards welcome. Ring for latest prices. We buy & trade RAM. PELHAM Tel: (02) 980 6988 Fax: (02) 980 6991 Shop 6, 2 Hillcrest Rd, Pennant Hills, 2120. $150.00 each. Macro Cross Assemblers for these CPUs + 6800/01/03/05 and 6502: $150 for the set. Debug monitors: $75 for 6 CPUs. All compilers, XASMs and monitors: $450. 8051/52 or 80C320 simulator (fast): $75. Demo disk: FREE. All prices + postage. GRANTRONICS, PO Box 275, Wentworth­ville 2145. Ph/ Fax (02) 631 1236. MicroZed has PIC Source book in stock. Gives code for Stamp routines to use in your own PIC programs. NEW SPRINKLER CONTROLLER KITS: RAIN BRAIN version uses ‘C8 Quick And Easy Circuit Development Get your project going and on the market fast Resident BASIC interpreter Each pin can sink 25mA, source 20mA Minimum extra hardware needed for most jobs BASIC STAMP and accessories available Send 4 x 45c postage stamps for information package and prices for all products. MicroZed Computers PO Box 634 (296 Cook’s Rd), Armidale 2350 V (067) 722 777 F (067) 728 987 Credit cards accepted. and switch mode supply. Features galore!! Contact Mantis Micro Pro­ducts, 38 Garnet St, Niddrie 3042. Phone/fax (03) 337 1917. MicroZed has MicaSOFT Tutor Program. For demo send 4 x 45c to MicroZed (see display advert p.95 for address). PROGRAMMER/EDITOR SOFTWARE for new Lattice EEPROM 7ns Generic Digital Switch ICs. Just connect to PC parallel port! Use to reconfigure circuits SILICON CHIP FLOPPY INDEX WITH FILE VIEWER Now available: the complete index to all SILICON CHIP articles since the first issue in November 1987. The Floppy Index comes with a handy file viewer that lets you look at the index line by line or page by page for quick browsing, or you can use the search function. All commands are listed on the screen, so you’ll always know what to do next. Notes & Errata also now available: this file lets you quickly check out the Notes & Errata (if any) for all articles published in SILICON CHIP. Not an index but a complete copy of all Notes & Errata text (diagrams not included). The file viewer is included in the price, so that you can quickly locate the item of interest. The Floppy Index and Notes & Errata files are supplied in ASCII format on a 3.5-inch or 5.25-inch floppy disc to suit PC-compatible computers. Note: the File Viewer requires MSDOS 3.3 or above. Price $7.00 each + $3 p&p. Send your order to: Silicon Chip Publications, PO Box 139, Collaroy 2097; or phone (02) 9979 5644 & quote your credit card number; or fax the details to (02) 9979 6503. Please specify 3.5-inch or 5.25-inch disc. August 1995  95 Microprocessor For Digital Effects Unit Microprocessor For Stereo Preamplifier Advertising Index Now available from SILICON CHIP: the 68HC705-C8P pre-programmed micro­pro­cessor IC for the Digital Effects Unit described in the Feb­ruary 1995 issue. Price: $45 + $6 p+p Payment by cheque, money order or credit card to: Silicon Chip Pub­lica­ tions, PO Box 139, Collaroy, NSW 2097. Phone (02) 9979 5644; Fax (02) 9979 6503. Now back in stock: the 68HC705-C8P pre-programmed micro­pro­cessor for the Infrared Remote Controlled Stereo Preamplifier (SILICON CHIP, Sept.Oct. 1993). This device also suits the Remote Volume Control published in May & June, 1993. Price: $45 + $6 p+p Payment by cheque, money order or credit card to: Silicon Chip Pub­ lications, PO Box 139, Collaroy, NSW 2097. Phone (02) 9979 5644; Fax (02) 9979 6503. Altronics ................................ 34-36 without rewiring! Send SSAE, phone or poll fax. Advanced R & D Solutions, 12 Copeland Road, Lethbridge Park 2770. Ph/Fax (02) 628 1223. SATELLITE DISHES: international reception of Intelsat, Panamsat, Gorizont, Rimsat. Warehouse Sale – 4.6m Dish & Pole $1499; LNB $50; Feed $75. All accessories available. Videosat, 2/28 Salisbury Rd, Hornsby. Phone (02) 482 3100 8.30-5.00 M-F. UNUSUAL BOOKS: Electronic Devices, Fireworks, Locksmithing, Radar Invisibility, Surveillance, Self-Protection, Unusual Chem­ istry and more. For a complete catalog, send 95 cents in stamps to Vector Press, Dept S, PO Box 434, Brighton, SA 5048. PRINTED CIRCUIT BOARDS for the hobbyist. For service & enquiries contact: T. A. Mowles (08) 326 5590. MicroZed is now stocking MUSCLE wires, project books and kits. ADD AN IBM KEYBOARD DECODER (EA, Dec. 90) to your project. 8 left. PCB, Programmed 8749 & Disk $20. Av-Comm.....................................65 Car Projects Book......................IFC Dick Smith Electronics........... 10-13 Emona.........................................87 Harbuch Electronics....................88 Instant PCBs................................96 Jaycar ................................... 45-52 Kalex............................................23 Kits-R-US.....................................89 Macservice...............................3,17 MicroZed Computers...................95 15 Romloader 256K upgrade PCBs left. PCB, EPROM, 9346 EEPROM, 74HC­4053, Labels & Disk $25. P&P $5. Tantau Australia, PO Box 1232, Lane Cove 2066. AH (02) 878 4715. SATELLITE EQUIPMENT: we sell quality products at prices you can afford. Dishes from $140. Ku LNB voltage switching with built-in feedhorn from $150. C band LNB 23 deg from $140. Receivers; eg, Pace 919 low threshold is $420. We stock Gardiner, Drake, Pace, Chaparrel, KTI, plus many more. A catalogue is available. Contact Satellite Professionals on phone or fax (03) 803 0215 WANTED WANTED: AR2002 Communications Receiver 25-550MHz and 8001300MHz. Melbourne (03) 9707 2326. Oatley Electronics.................. 78-79 Pelham........................................95 Railway Projects Book.............OBC RCS Radio ..................................94 Rod Irving Electronics .......... 67-71 R.S.K. Electronics........................86 Silicon Chip Back Issues....... 84-85 Silicon Chip Binders....................96 Silicon Chip Bookshop.................93 Silicon Chip Software..................83 Silicon Chip Walchart................IBC Telstra..........................................89 Tortech.........................................23 _________________________________ PC Boards SILICON CHIP BINDERS Printed circuit boards for SILICON CHIP projects are made by: These binders will protect your copies of SILICON CHIP. ★ Heavy board covers with 2-tone green vinyl covering ★ Each binder holds up to 14 issues ★ SILICON CHIP logo printed in gold-coloured lettering on spine & cover • RCS Radio Pty Ltd, 651 Forest Rd, Bexley, NSW 2207. Phone (02) 587 3491. • Marday Services, PO Box 19-189, Avondale, Auckland, NZ. Phone (09) 828 5730. Price: $A14.95 each (incl. postage in Aust). NZ & PNG orders please add $A5 each for p&p. To order, just fill in & mail the order form in this issue to: Silicon Chip Publications, PO Box 139, Collaroy 2097; Or phone (02) 9979 5644 & quote your credit card details or fax (02) 9979 6503. • HT Electronics, Shop 4, 8 Roberts Rd, Hackham West, SA 5163. Phone (08) 326 5567. 96  Silicon Chip