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Adding AGC to high gain AF amplifier

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neazoi

neazoi

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Hello, this little high impedance headphones AF amplifier has more than 100dB of gain.
I do not need that much gain for my receiver (it oscillates), but instead of removing the last transistor, I am thinking of it would be nice to use this extra gain in conjunction with an AGC circuit.
How can I apply a simple AGC (discrete components) to this amplifier, so that it does not oscillate when the output volume is high?
 

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