what with all the fond philosophing and theorizing and debating about avc vs.agc ..behold a REAL circuit ..
found this in an old magazine ...
Modded it to look like this
And included measurements ...something I have not seen on a lot of the others ...
No phase shifters (feedback is DC) so I doubt it will oscillate too much ...works...keeps my ears calm
AGC/AVC is a complex problem....Simple solutions to complex problems seldom yield positive results