circuit to listen to microphone signal

Thread Starter

craftindo

Joined Jan 25, 2015
11
C6 sets a high frequency limit on the gain of the op-amp. Some op-amp circuits will oscillate at a frequency so high you can't hear it without this capacitor. You find out when you see the smoke.
so, how is the circuit for differential amplifier? where should i put the blocking DC capacitor?

thanks
 
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