[TenTec] Century 21 Popping/snapping sound when keyed

[Mike Bryce]

Do you hear the sidetone or just the pops and clicks? 

If you don't hear the sidetone, those pops are the sidetone. If that's the case, a capacitor on the board that holds the af/rf pots needs pulled. 

Mike

Sent from my iPhone

On Jun 13, 2011, at 4:34 PM, Paul <hglent at frii.com> wrote:

> I just got the old C21 out of the box and fired it up.  The rig has not 
> been on the air in more than 10 years.  I worked through all the 
> micro-phonics and dirty contact problems.  Receive and transmit are now 
> clean and close to the original specs.
> 
> This question has probably been talked about previously on this group.  
> So a little direction to its solution is appreciated.
> 
> When keying I hear a loud crack or thump sound from the speaker.  Any 
> suggestions or direction to previous info will be appreciated.
> 
> Paul K.
> WA0BAG
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