[TenTec] Century 21 problem

Mike Hyder -N4NT- mike_n4nt at embarqmail.com
Sat Apr 26 20:35:47 EDT 2008


I had a warbly sidetone when RF got into the key jack of the rig.  In my 
case, the RF was getting into my keyer, then to the rig.  In one case 
(Hallicrafters HA-4) the keyer output was a transistor.  RF would prevent 
the transistor from conducting fully and that would make a warble.

73, Mike N4NT

----- Original Message ----- 
From: "Stew" <radio52 at sbcglobal.net>
To: <TenTec at contesting.com>
Sent: Saturday, April 26, 2008 7:02 PM
Subject: [TenTec] Century 21 problem


> Just recently I've notice that when I put a "Load" by increasing the power
> output of the transceiver the tone of the cw becomes warrbly. It sounds 
> like
> a power supply problem but not sure where to look to correct this . Anyone
> else have or had this problem.?
> Thanks
> Stew



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