Build Your Own Crude FM Radio

In this project I will demonstrate how a RF FM transmitter works and how this principle compares to the older AM. I will also show you how to build a simple and crude FM receiver which can even sometimes let you listen to your favorite radio stations. Let's get started!

The video gives you plenty of information about how FM and AM radio signal communication works and how the receiver circuit performs. I will present some additional information for the receiver in the following steps.

Here you can find a parts list with example sellers for your convenience (affiliate links).

Amazon.de:

1x LM386: http://amzn.to/1PkTgbX

1x 10kΩ, 1x 4.7kΩ Resistor: http://amzn.to/1A2KZzi

1x Variable Capacitor (1-30pF): http://amzn.to/1PkTwYi

2x BF199 Transistor: -

1x 25kΩ Potentiometer: http://amzn.to/1IrYFpR

2x 100nF Capacitor: http://amzn.to/1IrYXgf

1x 10µF, 1x 470µF Capacitor: http://amzn.to/1IrZ4Ze

Aliexpress:

1x LM386: https://s.click.aliexpress.com/e/_d7zbzub

1x 10kΩ, 1x 4.7kΩ Resistor: https://s.click.aliexpress.com/e/_dTPpXjt

1x Variable Capacitor (1-30pF): https://s.click.aliexpress.com/e/_dWVcswb

2x BF199 Transistor: https://s.click.aliexpress.com/e/_dYRkUBl

1x 25kΩ Potentiometer: https://s.click.aliexpress.com/e/_dTFyPv5

2x 100nF Capacitor: https://s.click.aliexpress.com/e/_dU4FEsB

1x 10µF, 1x 470µF Capacitor: https://s.click.aliexpress.com/e/_d7dOwRz

Ebay:

1x LM386: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 10kΩ, 1x 4.7kΩ Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x Variable Capacitor (1-30pF): http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x BF199 Transistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 25kΩ Potentiometer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

2x 100nF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

1x 10µF, 1x 470µF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?...

Here you can find the schematic and two pictures of my finished FM Receiver. Use them as a reference to build your own.

You did it. You just built your own crude FM Receiver and learned something about RF communication.

Feel free to check out my YouTube channel for more awesome projects:

http://www.youtube.com/user/greatscottlab

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