2015-11-29
[public] 1.13M views, 19.9K likes, dislikes audio only
WARNING: Always check your local laws before using a frequency to transmit your RF FM signal.
Previous video: /youtube/video/eYVOdlK15Og
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Twitter: https://twitter.com/GreatScottLab
Support me for more videos: https://www.patreon.com/GreatScott?ty=h
More project information (parts list, schematic, .....) on Instructables: http://www.instructables.com/id/Build-your-own-Crude-FM-Radio/
Parts (affiliate links):
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
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
Ebay:
1x 10kΩ, 1x 4.7kΩ Resistor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=271598211084&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg
1x Variable Capacitor (1-30pF): http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=130854092221&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg
1x 25kΩ Potentiometer: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=301052121341&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg
1x 10µF, 1x 470µF Capacitor: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub=5575101368&toolid=10001&campid=5337582279&customid=&icep_item=131544080386&ipn=psmain&icep_vectorid=229466&kwid=902099&mtid=824&kw=lg
In this video 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.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com)