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Driving circuit
Posted by Scott de Klerk on 12/4/2006, 6:34 pm I'm trying to build a small antenna, driven at 10MHz by a current of about 10A. I figured that perhaps a straighforward modification of one the oscillating circuits driving the primary of a TC could be of use in powering the antenna. Does anyone know of a good, reliable design that does the trick? I don't actually need very high voltages, just the current through the antenna (and the frequency.) The antenna should only consume about 300W, so it's not a particularly high power application. It'd be nice if I could keep the driving circuit compact and use mostly solid state components, but I'll use bulkier analog devices if I have to. Many thanks,
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Re: Driving circuit
Posted by Bert Hickman on 12/9/2006, 10:35 pm, in reply to "Driving circuit" Hi Scott, Your best bet is probably to visit some Ham Radio web sites and discussion groups, since 10 MHz is about 10-100X the frequency used by most Tesla Coilers. What you need sounds very much like a linear RF power amplifier. The frequency is considerably higher than most Tesla Coil half bridge or full bridge switching circuits, so you'll most likely need to use RF transistors and RF design techniques. Good luck and best regards, Bert.
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