im using a pre amp mic circuit in a simple circuit, the pre amp circuit doesn't give out the output it should be , instead it's giving a random value around 400 and keep increment by 1 pic of the circuit (some resistance values aren't right on the cw circuit diagram but it's correct in the real cir…

simple mic circuit won't work

Amarinf May 19, 2014, 5:36pm 6

Looks like your C3 is faulty. replace it and try again..

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