Simple Fm Mic Circuit Diagram. This simple fm wireless microphone transmitter can transmit speech over a short range. The air pressure around mic produces such capacitance.
The oscillator is required to generate carrier waves in fm transmitter. They are generally used for public address purposes and entertainment programs. A microphone is a device which is able to convert voice or sound vibrations in the air into electrical pulses.
It build with a very few numbers of components include a transistor few capacitors resistors and a small microphone.
Which this transistor and a few parts around itself have 2 functions. Ic1 a max4467 is an amplifier raising the microphone signal to a level suitable for frequency modulation fm. Figure 1 two transistors fm wireless microphone circuit. It can be used as a simple cordless microphone.