Walrus said:Could someone explain why this mic amp has a 2dB roll of at 20 Hz when the gain is at maximum, but is flat when gain is less than max??
There is a 10 Ohm resistor in series with the gain pot that I forgot to add to the drawing....
There is only about 5 mV DC offset across the pot.
Samuel Groner said:Broken cable sounds familiar!
There is only about 5 mV DC offset across the pot.
With 60 dB gain, this makes 5 V at the output...
Samuel
Walrus said:On the basis of a bit of experimentation with a few caps, I'm going to use a 15,000uF 6.3V cap.
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