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Published on 16 Dec 2009 | over 7 years ago

Afroman goes over the basics of how to use an op amp (operational amplifier) to amplify tiny voltages, and builds a circuit to listen to very faint sounds with a microphone.
LM324 Quad op amp: www.amazon.com/exec/obidos/ASIN/B0088VAA80/afromods-20
Circuit diagram: www.afrotechmods.com/groovy/amplifier_tutorial/amplifier_tutorial.htm Check out my webpage www.afrotechmods.com for more videos about electronics!

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