This is a schematic of a simple FM tx / FM transmitter circuit using only eight components. It is a good quality fm transmitter and able to transmit at a distance of 50 meters. The circuit is very sensitive so it can easily hear and boradcast faint sounds. Use 10 inch wire as antenna. L1 is
equal to 5 turns of 24 guage enameled wire wound on 10mm former (air core). The circuit can be powered from 3V battery, you can also use wrist watch batteries.
Note: This circuit is for educational purpose only.