Preamp with Microphone Loopback

@RichardTB

5 years ago

https://everycircuit.com/circuit/6546598967115776

For mobile phone device audio recording. With additional pre-amp for listening whilst recording. 3.8Ohm == Speaker. 9V == Battery/DCPower supply 22khz == Audio Output (+ facing capacitor) 10uF == Mic Input