Image of FM Transmitter
Circuit Diagram of FM TransmitterThe circuit uses only single Transistor but good voice quality. This Circuit is very simple and uses few components. Main part of the circuit is RC ( Resistance Capacitor )circuit to produce RF at required Frequency band.
At FM receiver side Radio waves(oscillating magnetic lines) produces current in Arial. Which is further amplified, Demodulated and feed to a Speaker.
Part List :
10 Mfd, .01 Mfd, .001Mfd, 2.2pf, 4pf, 5pf, 27pf, 68pf
3.3K, 2.7K, 3.9K, 220 Ohms
Mic = Condenser Mic
3V battery with Container, Switch
This Video explains how Radio waves are produced.