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Re: [TenTec] 564

To: tentec@contesting.com
Subject: Re: [TenTec] 564
From: WA4VEC@aol.com
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 20 Mar 2012 17:37:54 -0400 (EDT)
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
My guess is that these are two separate problems.  I have a 563 that  has 
been exhibiting the first problem for several months and I suspect a  leaky 
electrolytic(s) on the IF/AF board.  I notice that the longer the  radio has 
been off, the longer the time it takes the audio to return which I  believe 
corresponds to the time it take the capacitor(s) to reform.   So far the 
delay has not been enough to cause me to dig into the board so I  cannot be 
positive as to the cause.
The second problem is probably reed relay K1 on the low pass filter board  
which follows transmitter keying.  If it sticks closed it will  probably 
kill most of the received signal.  I had a 580 with the same  problem that I 
fixed by replacing the reed relay.  It should be  available from Ten-Tec and 
not too expensive either. 
In a message dated 3/20/2012 3:17:50 P.M. Eastern Daylight Time,  
elespe@lisco.com writes:

Radio is  "new" to me and so far a nice performer

Two glitches I observe:
(1)  Sometimes, more often than not, when I turn on power the S meter is 
active  indicating signals but the audio is mute for some delay, varies 
fraction of second to seconds
(2) During a recent ssb QSO the receive  would not always come back to 
it was before transmitting. Keying the  PTT will bring it back.

Any suggestions or "yeah it does that" always  appreciated

Paul K0UYA  

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