Fm Circuit Diagram. The following circuit diagram shows the fm transmitter circuit and the required electrical and electronic components for this circuit is the power supply of 9v resistor capacitor trimmer capacitor inductor mic transmitter and antenna. The fm radio circuit mainly consists of lm386 ic.
Bf 494 transistor t1 t2. This circuit is capable of producing the loud sound which is better than commercial radios. This will definitely be useful for your educational purposes.
So a 22pf trimmer is a good choice to be used as vc in the circuit.
Fm radio circuit diagram with parts list. You should be able to change the capacitance of the variable capacitor from a couple of picofarads to about 20 pf. Fm radio circuit diagram with parts list. It operates at a supply voltage of 4 12 volts.
