If what you want is to reduce how aggressive the AGC is,?
I suggest replacing that 100k resistor to the left of the diode with a 100k pot.
The wiper of the pot goes to the diode,
the two ends of the pot go to the 0.1uF cap and to ground (where the 100k resistor was).
You could just leave the pot in there.
Or you could twiddle the pot until you get the effect you want,
then measure the pot with an ohmmeter and replace it with a couple resistors.
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On Tue, Aug 15, 2017 at 06:58 pm, AA9GG wrote:
That WILL increase the gain of the LM386
. . .
?
On Sun, Aug 13, 2017 at 8:28 PM, KN4AAG Kevin Estep
<kevin.estep@...> wrote:
I added the VU2ESE AGC to my BITX40, along with a bypass switch. It does work, but as I found in another post, I need more audio out with the AGC engaged. The poster recommended replacing the 1uF capacitor at C113 (LM386 pins 1 to 8) with a 10uF cap. I intend to try that. Has anyone here made that change? Any other mods to this AGC that would be helpful?
