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7th May 2012, 01:37 PM
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diyAudio Member
Join Date: Mar 2012
Location: New York
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Electret Mic Power Circuit for PC Input
It seems this subject overlaps several forum categories, but the power circuit could be classified as a preamp.
I disected a cheap desktop mic and am befuddled as to what these diodes are there, and what they do. The cap is SMD and not electrolytic, and it appears the diodes are not zeners; they conduct with .5v drop using diode tester. Gigaware 33-120 Mic Wiring Diagram_.JPG The mic works well. I recorded a guitar piece through the onboard sound card and it was surprisingly good. Any light that could be shed on this would be greatly appreciated. Last edited by ITPhoenix; 7th May 2012 at 06:02 PM. Reason: Forgot to actally ask a question. |
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