Condenser Microphone Schematic. Here is a circuit diagram of a popular small power amplifier using lm386. The membrane acts as the diaphragm and is electrically conductive.
Because condenser mics use the capacitance variation to create the signal the element must be electrically charged. You can read how condenser microphone works later. Older microphones used a thin metal foil but more modern types may use a plastic coated with gold or aluminium.
This is another a circuit diagram of homemade mic speaker amplifier using lm386.
Condenser mic circuit diagram. It changes the sound to electrical signals before sending to a power amplifier. Air sound wave into audio signal. A condenser microphone starts with a very thin membrane that has metal sputtered onto it so it conducts electricity.
