We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

« previous next »
Pages: [1]

Author Topic: An LM386 Audio Amp, with Audio AGC Circuit?  (Read 129 times)

Offline ThaDood

  • DX Legend
  • ******
  • Posts: 1510
    • Likely, not where you are.
    • Extreme Part #15!
    • Email
An LM386 Audio Amp, with Audio AGC Circuit?
« on: December 05, 2025, 1928 UTC »
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.)
« Last Edit: December 07, 2025, 1721 UTC by ThaDood »
Logged
“I am often asked how radio works. Well, you see, wire telegraphy
is like a very long cat. You yank his tail in New York and he
meows in Los Angeles. Do you understand this? Now, radio is
exactly the same, except that there is no cat.”
-Attributed to Albert Einstein, but I ripped it from the latest Splatter .PDF March 2025 issue.
Pages: [1]
« previous next »
 

HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns