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[TenTec] Electret Mic voltage vs. Dynamic Mic

To: <tentec@contesting.com>
Subject: [TenTec] Electret Mic voltage vs. Dynamic Mic
From: darwin@together.net (K & H Darwin)
Date: Thu, 20 Apr 2000 18:23:13 -0400


----------
> From: Stuart Rohre <rohre@arlut.utexas.edu>
> To: Rod Pruner <rod_pruner@yahoo.com>; tentec@contesting.com
> 
> Rod,
> Since a dynamic mike is an electromagnet element, you MUST NOT allow DC
to get
> to it.  At worst you will burn out the winding.  ADD a blocking
capacitor, or


I don't know how it is with "ham" mics, but dynamic mics used for live
music / PA purposes (Shure SM58, SM57, etc.) are transformer coupled so
they are uneffected by these DC voltages.

- Keith -

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