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Simple aero and PC headset tester

Status: Proposal
1914
1
votes
April 7, 2014
A one IC circuit to test microphone and earphone of aero and PC headset. With a switch, you can choose a tone generator or the microphone as an input. You can adjust the mic gain, as well as the earphone gain. Very easy to wire, only few components.
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Small case !

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