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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. SOLAR PANELS: buy by mail and save! 75 watt from $590.00, unbreakable s/steel 64 watt $555.00. Largest manufactured: 120 watt $995.00, flexible 32 watt $475.00. Limited stock 22 watt $195.00. All other sizes available, top brands, lowest prices. INVERTERS: budget inverters from $110.00 (12V 140W). High quality pure sine wave inverters from $390.00. Call with your requirements. WIND GENERATORS: wide variety available, call with requirements. TASMAN ENERGY Free call 1800 226626 RAIN BRAIN AND DIGI-TEMP KITS: 8 station sprinkler controllers, 60 channel temp monitor uses DS1820s over 500 metres. Has PC Data logging. Mantis Micro Products, http://www.home.aone.net.au/mantismp RTN Australia Parallax distributor: Basic Stamps, SXKey develop­ ment tools and SX chips. Wireless RF modules, serial LCD modules, Basic Stamp Bug, etc, etc. FerretTronics >R/C servo control chips. NEW: HandyScope 2 from Europe, 2 channel/12 bit portable measur­ i ng instrument, it’s a voltmeter, digital storage CRO, transient recorder and spectrum analyser. All in a very small box powered off a parallel port. DOS and Windows software provided. Ph/ Fax (03) 9338 3306. email: nollet<at>mail.enternet.com.au http://people.enternet.com.au/~nollet PICTUTOR: Programmer board + 32 tutorials for PIC84. Other models available. E.S.T. (02) 9789 3616. Fax (02) 9718 4762. Advertising Index Altronics................................. 60-61 Av-Comm Pty Ltd.........................95 Dick Smith Electronics..................... ................................ IFC,OBC,14-17 Evatco..........................................91 Harbuch Electronics....................83 Instant PCBs................................95 Jaycar .............................. 45-52,95 KIT ASSEMBLY Kits-R-Us.....................................95 ANY KITS assembled/calibrated: professional, speedy service. Phone Nev­ille Walker (07) 3857 2752. Microgram Computers...................3 WANTED Oatley Electronics........................71 WANTED: A Z-80 trainer that works, preferably with manuals. Would prefer a Microprofessor or similar. Phone Colin Turner (02) 6231 7249. Printed Electronics.......................95 ANNOUNCEMENTS DON’T MISS AUSTRALIA’S BIGGEST AND BEST EXHIBITION and sale of new and used radio and communication equipment at the Central Coast Field Day, Sunday 28th Feb, Wyong Race Course, just 1 hour north from Sydney. Starts 8.30 a.m. Special Field Day bargains from traders and tons of disposals gear in the flea market. Exhibits by clubs and groups with interests ranging from vintage radio, packet radio, scanning, amateur TV and satellite comms. www.ccarc.org.au; Ph (02) 4340 2500. MicroZed Computers...................37 Procon Technology......................95 Quest Electronics........................25 RCS Radio...................................95 Scan Audio..................................77 Silicon Chip Back Issues....... 78-79 Silicon Chip Bookshop.................93 Silicon Chip Subscriptions...........53 Silicon Chip Binders/Wallchart....85 Smart Fastchargers.....................25 Solar Flair/Ecowatch....................95 Solis.............................................96 Truscott’s Electronic World...........77 HELP SAVE THE NIGHT SKY! We are losing our heritage of starry night skies. Poor, inefficient outdoor lighting is causing glare and “light pollution”. This wastes energy and increases greenhouse gas emissions. You can help by joining SYDNEY OUTDOOR LIGHTING IMPROVEMENT SOCIETY (SOLIS). SOLIS aims to educate and inform about quality outdoor lighting and its benefits. We also lobby councils, government and other bodies to promote good lighting practice. SOLIS meetings are held third Monday night of each month at Sydney Observatory. Individual membership is $20 pa. Donations are also welcome. Cheques payable to “SOLIS c/- NSAS”, PO Box 214, West Ryde 2114. Email: tpeters<at>pip.elm.mq.edu.au 96  Silicon Chip Zoom EFI Special......................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.