FM waves are the most widely used radio broadcast frequency today due to their excellent sound quality and the possibility of stereo. For some amateur radio enthusiasts, building their own FM radio is quite a challenge. Building an FM radio or simple FM receiver is more difficult than building an AM radio receiver. However, while building an FM receiver is quite difficult, it's not impossible. In this article, I'll share a simple FM receiver circuit schematic that uses only one transistor and an LM386 IC as a sound amplifier. Of course, it's not just the transistor; there are several capacitors, resistors, and inductors as supporting components. Essentially, the FM receiver circuit I built is a modification of an existing toy walkie-talkie circuit; I made only a few changes to suit my needs. In this simple FM receiver circuit, the RF signal receiver and oscillator use only one transistor, without an intermediate frequency amplifier. The signal from the RF amplifier is direc...
Simple walkie talkie and radio circuit