ASTEC Modulator

barry wilkins

Senior Member

Join Date: Aug 2009

Posts: 172
#1

ASTEC Modulator

03-16-2013, 01:45 PM

I have a small Astec UHF modulator that does work ,the oscillator has stopped running I have checked everything in the circuit and cannot find anything obviously faulty. Its pretty simple looks like a common base transistor circuit.
I am wondering if the gain of the transistor is too low for it to work ( gain figure of 29 seems to be in the back of my mind).
Does any of you guys have any ideas or info that might help?

thanks

Barry
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ASTEC Modulator

ASTEC Modulator

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