Electret Mic Stereo Preamplifier

I was looking for a simple per-amplifier circuit. Found one at http://www.minidisc.org/mic_preamp/Simple%20Stereo%20Electret%20Mic%20Preamp.htm. I made minor modifications and here is my version. Gain is set by R7 and R8 in left channel and R9 and R10 in left channel. In each channel gain will be 1+ (33K/3.3K) = 11. Replacing 3.3K resistors with 1.5K resistor will […]