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Microphone Tester
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may not be copied, reproduced, distributed or displayed without his express written permission.

This circuits is handy for finding an intermittent short or open in a microphone cord or switch.  It produces a week tone in the microphone so that you can flex the cord and operate the switch to find faults.  It won't find an open shield or a short from the blue wire to the shield, but it's been very handy for me.  It won't damage dynamic microphones.

More:  Test Equipment;  Microphone Circuits
Click on Schematic to view PDF

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if you want me to link to and/or post your original design Thanks.


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