A mic preamp for a condenser mic. For a dynamic mic remove the 3.3k resistor. For a carbon amp some readjustments must be made so ill leave that behind. Its designed so that it would supply a power amp with line level of around 1V/pk-pk (around 330mV RMS). The amp is designed to amplify signals within the 300Hz-3400Hz range because thats where human voice lies.
