HFU HF Underground
Technical Topics => The RF Workbench => Topic started by: ThaDood on December 05, 2025, 1928 UTC
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https://ganymedeham.blogspot.com/2013/08/lm386-amp-with-agc.html That schematic is kind of vague, but that feedback loop, with 10uF CAP in it is from pins 1 and 8. Output is pin 5. And, pin 2 is Audio IN. Pins 3 and 4 are tied to Ground. And VCC is +12VDC on pin 6. Pin 7 is N/C. Still, I like the simplicity of this. (Boomer, helped fill-in the pins on this one.)
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That's a crap circuit. It'll just clip and distort. If you want a proper audio AGC, it's a bit more complicated than that awful circuit.
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Indeed. Simple rarely means Good.
The LM386 is crap anyway. There's much better devices.
Please dont ever show a receiver with sn NE612 in the front end.
Str.