amplify voltage and build microphone circuit


Posted on Feb 5, 2014

An amplifier is something that amplified the voltage on a circuit. The most basic kind is an operational amplifier, and this video will show you how these work and how to use them in your electronics. As an example you`ll learn how to make a microphone circuit for spying on people or listening to your heartbeat. Circuit Diagram..


amplify voltage and build microphone circuit
Click here to download the full size of the above Circuit.




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