14+ Radio Transmitter Circuit Diagram. A simple fm radio transmitter circuit which covers frequencies from 88 to 108 mhz. Ic 555 (ic1) is used as a free running multivibrator whose frequency is set above 540 khz.
Here the circuit is designed for a frequency of around 600 khz. The propagation of electromagnetic waves is visualised. Audio picked up and amplified by the electret microphone is fed into the audio amplifier stage built around the first place the transmitter about 10 feet from a fm radio.
It is basically a vhf colpitts oscillator capable of transmitting sound or music to.
14+ Radio Transmitter Circuit Diagram. I want to make a. The circuit diagram shown for fm transmitter circuit and the electronic components are the resistor, capacitor, trimmer or variable capacitor, inductor the modulated signal is then transmit or radiated as a radio wave with the frequency of fm frequency range. The circuit contains microphone preamp for increasing the signal of weak sounds. Make coil l1 accurately as shown in diagram.