Quote:
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Originally Posted by Seden
WM6 is right. If you used a large ferrtie bar antenna and mounted it on a tripod with a 1 watt transmitter you would have all you need to use your AL707. So easy at 20 khz to make a simple OP-AMP signal generator and feed it into a audio power amp IC. Couldn't cost more than $25USD.
Randy
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Hi Randy,
What kind of ferrite, and what size do you recommend?
what size wire, and how many turns?
I am sure the oscillator can be adjusted to whatever inductance and response the coil assembly would produce.
Best wishes,
J_P