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D-104 Silver Eagle Mic Squeels

I have a D-104 power mic that squeels,I was informed,all I had to do was add a capacitor.My question is what cap & where?

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Hi, usually when they refer to putting a cap in, their talking about adding a .01mfd disc cap to the white audio lead wire up inside the bottom of the mic. Just follow the cord into the bottom of the mic, by taking the bottom off. find the white(audio) wire where it fastens to either the board or the terminal strip. Just unsolder the white wire and add the cap and resolder the other leg of the cap back where the white wire was removed. Some people even use a cap and resistor combo. Sometimes using a .001 cap from the audio line to ground then a 4700 ohm resistor will work in extreme cases.
http://www.qsl.net/wa2mzf/d1044.jpg
You can experiment with different combo to see what will work for you. Hope this helps you out, let us know,,, Mechanic

Posted on Feb 18, 2008

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