https://tube.loping.net/videos/watch/dd8b6790-7ff8-49e9-8061-a42c087e0839 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: http://www.amazon.com/exec/obidos/ASIN/B0088VAA80/afromods-20 Circuit diagram: http://www.afrotechmods.com/groovy/amplifier_tutorial/amplifier_tutorial.htm Check out my webpage http://www.afrotechmods.com for more videos about electronics! Twitter: http://twitter.com/Afrotechmods Facebook: http://www.facebook.com/Afrotechmods/ Sun, 12 Jul 2026 14:13:04 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.loping.net https://tube.loping.net/lazy-static/avatars/8a56e488-2120-4649-a417-badf5893657b.png https://tube.loping.net/videos/watch/dd8b6790-7ff8-49e9-8061-a42c087e0839 All rights reserved, unless otherwise specified in the terms specified at https://tube.loping.net/about and potential licenses granted by each content's rightholder.