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THE ELECTRONICS MAGAZINE FOR THE ENTHUSIAST WE INVITE BECOME You To A SUPPORTER We believe that electronics is a fascinating pursuit, and the most useful hobby that anyone can have, particularly for a young person in school. Anyone with a good grounding in electronics is better prepared to meet the challenge of today's and tomorrow's technology. Because we believed that many more people should come to know about and enjoy electronics, we decided to start a new magazine expressly for electronics enthusiasts, whether they be nervous beginners or seasoned veterans. We called it SILICON CHIP, a name which focuses on the very basis of today's electronics technology. We started SILICON CHIP as an independent magazine completely free from the influence of any existing publishing company, because we wanted to establish the highest possible standards for accuracy and attention to detail. Our team is very small: founders Leo Simpson and Greg Swain, plus full time staff members John Clarke and Bob Flynn. SILICON CHIP has now been on sale for 11 months and has been very well received. Even at this early stage, you, the readers, have clearly indicated that SILICON CHIP is the most entertaining and best produced electronics magazine in Australia. Considering the hard work in getting started, it has been a very gratifying response. But we want to make SILICON CHIP even better. To do this, we need the resources to employ more people; we need the services of technical illustrators, writers, designers and other creative people. This is the only way that we can be sure of attaining the highest possible editorial standard. We know this is what you want. Your letters tell us. But we can only do this with your enthusiastic support. Already, many hundreds of readers have taken out subscriptions to give SILICON CHIP a solid start but we would like to have thousands more. If you haven't already done so, please give us your vote by becoming a subscriber. By doing so, you will be ensuring the future of an entertaining, informative and independent SILICON CHIP magazine. Regular Features The Serviceman's Log Projects For * Amateur * Constructional The Enthusiast Radio, by Garry * Cratt, VKZYBX HiFi Review * Digital Electronics Course The Way I See It, by Neville * Circuit Notebook * Willams * ·* Vintage Radio * Book Reviews Junk Mail Most magazines sell their subscriber list to mail order companies, to earn extra income. We will not do this. We will lose some money by adopting this policy but we believe that your privacy is paramount. BECOME A SUPPORTER BY FILLING OUT THE POSTAGE FREE SUBSCRIPTION COUPON OVERLEAF ► SEPTEMBER 1988 93 FREEPOST SUBSCRIPTION COUPON To: Freepost 25, Silicon Chip Publications, PO Box 139, Collaroy Beach, NSW 2097, Australia. BACK ISSUES NO POSTAGE STAMP REQUIRED IN AUSTRALIA PLEASE START my subscription in ............................ .............................. . NAME (Mr/Mrs/Ms) ...... ........................... .. ....... ......................................... . STREET ......................... ......... ......... ................... ........ ..................... ........... . SUBURB/TOWN ................................................. .........POSTCODE ............ . Subscription cost: 1 year (12 issues) 2 years (24 issues) Within Australia □ $42 □ $84 Overseas surface mail □ $62 □ $124 Overseas air mail □ $120 □ $240 Enclosed is my cheque or money order for $ ........... or please debit my □ Bankcard □ Visa Card Card No. '-I- - - '- --'--'-~~~~~~~~~~~~~ Signature .. ................................ ................ Card expiry date ......./ ...... ./ ...... . GIFT to: NAME (.Mr/Mrs/Ms)................................................. ............... ....... ............ . STREET ............. .... ........ ....... ..... ...................................................... ........... . SUBURB/TOWN ............... ..... ........................... ..... ......POSTCODE ............ . Subscription to commence in ... ................................... .............................. .. Subscription cost: 1 year (12 issues) 2 Within Australia □ $42 □ Overseas surface mail □ $62 □ Overseas air mail □ $120 □ Enclosed is my cheque or money order for$ ........... □ Bankcard □ Visa Card years (24 issues) $84 $124 $240 or please debit my Card No. ~[T-~I~~-~-~~-~-~~~~ Signature .......................... .. ...................... Card expiry date ...... ./ ..... ../ ...... . NEW ZEALAND & PNG SUBSCRIPTION COUPON PLEASE START my subscription in ..................... ....................................... NAME (Mr/Mrs/Ms)... ............. ........................................................ .......... .. STREET ............... ........... .... .... ........ .. ..... ....... ... .. ...... .... ..... ....... ...... .............. SUBURB/TOWN ... ...... ................ ............ .. ..... .... .......... POSTCODE ...... ...... . Subscription cost: 1 year (12 issues) 2 yea rs (24 issues) Air mail □ $A130 □ $A65 Enclosed is my cheque or money order for $ .. ......... or please debit my □ Bankcard □ Visa Card Card No. I I I I I Signature ............... ................. .................. Ca rd expiry date .... .. ./ ...... ./ ..... .. Note: photocopy this coupon if you don't wish to cut the magazine, or include the relevant details in a letter. 94 SILICON CHIP Issue Highlights May 1988: Optical Tachometer for Aeromodellers ; High Energy Ignition for Cars; Ultrasonic Car Burglar Alarm; Restoring Vintage Radio Receivers. June 1988: Stereo Control Preamplifier; Breakerless Ignition For Cars; Automatic Light Controller; Mega-Fast Nicad Battery Charger. July 1988: Fitting a Fuel Cut-Off Solenoid; Booster for TV & FM Signals; The Discolight Light Show; Tone Burst Source for Amplifier Testing. August 1988: Build a Plasma Display; Remote Chime/Doorbell; High-Performance AC Millivoltmeter; Getting the Most Out of Nicad Batteries. Price: $5.00 each (incl. p&p). Fill out the coupon on page 1 0 2 (or a photostat copy or letter) and send it to: Silicon Chip Publications, PO Box 139, Collaroy Beach, NSW 2097. L™ITED NUMBERS OF BACK ISSUES ARE AVAILABLE SO DON'T DELAY