The feedback is the tail of the secondary - there has to be some load current for the oscillator to work.This circuit is a high frequency oscillator, and I think it produces high voltage. It is something like Tesla coil.
How this circuit oscillates? I can not find any resonance or something like that ?
What is the frequency of the oscillation?
Thank you very much,
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by Aaron Carman
by Jerry Twomey
by Duane Benson
by Aaron Carman