Simple Radio Transmitter Circuit. To boost the reception coil the wire in a circle and use zip ties or electrical tape to keep the coil from unraveling. The components required to build this project is listed below sn74ls13 4 input nand gate schmitt trigger lm386 audio amplifier.
Bc109 bfr91a and bfr96s. The main theme of this simple fm transmitter circuit is to build it with minimum available components without using inductor coil and variable capacitor and yet make it work to its maximum potential. A simple fm radio transmitter circuit which covers frequencies from 88 to 108 mhz.
I have made this circuit.
This circuit is designed with limited power output to match the fcc regulations and still produces enough amplitude modulation of voice in the medium wave band to satisfy your personal needs. The frequency mainly depends on the positioning and the values of the inductor c1 c2 and c3. Before you proceed please see the schematic given below. To boost the reception coil the wire in a circle and use zip ties or electrical tape to keep the coil from unraveling.
