FM Wireless Microphone Circuit Diagram For more wireless microphones check the related links bellow. Resistor R1 resistor limits the current to the microphone element. The output impedance of the ...

This is a low voltage microphone preamplifier circuit with a 1.5V power supply. The reference, with a 500 kHz unity-gain bandwidth, is used as a preamplifier with a gain of 100. Its output is fed ...