Listening to radio station having great fun. You can also make your own radio station by just simply using few electronic components.
What is FM Transmitter?
An FM transmitter is a device that transmits a signal from an audio device to a standard FM Radio. This is a mini FM Transmitter Circuit that you can use it a bug. This is very small so that's why its range is very short.
In this circuit, you can also use a variable capacitor to change the output frequency. This is a short-range transmitter but has a clear signal. This circuit will work on a 3.7v battery.
0.001uf, 22pf, 30pf Capacitor
330ohm, 4.7k Resistance