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Re: [TenTec] Electret Microphone "plopping/clicking"

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>, "Discussion of Ten-Tec Equipment" <tentec@contesting.com>, orion565@yahoogroups.com
Subject: Re: [TenTec] Electret Microphone "plopping/clicking"
From: "Richards"<jruing@ameritech.net>
Reply-to: Richards <jruing@ameritech.net>, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 13 Sep 2009 21:57:06 +0000
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
I might suggest you try a 4.7 K resistor from pin 2 to the mic side.  Also a 1 
mFd capacitor between the lead and pin 8 on the mic connector.

I think this will give you the correct voltage, but the DC is blocked from the 
radio side of the cap.  Mic gain might need to be reduced to around 7-10 
percent to avoid overdriving.

Others have suggested a 6.8K or even a 10K resistor on pin 2.

==========  Happy trails - James - K8JHR  ==============

> ------------Original Message------------
> From: "Peter Frenning [OZ1PIF]" <peter@frenning.dk>
> Subject: [TenTec] Electret Microphone "plopping/clicking"
> I bias the electret element from the voltage present on Pin2 through a 
> 2.2KOhm resistor, 


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