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Re: [TenTec] 564

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] 564
From: "Paul Kraemer" <elespe@lisco.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 20 Mar 2012 17:40:42 -0500
List-post: <mailto:tentec@contesting.com>
Sounds spot on to me
Yes, if radio has been off for several days it is a delay
Off for a few hours usually right back on
I'll look for the relay because it "sounds" like a relay problem
Excercising connectors would be good too as I wonder how long the 564 sat idle before I acquired it.
Paul K0UYA
----- Original Message ----- From: <WA4VEC@aol.com>
To: <tentec@contesting.com>
Sent: Tuesday, March 20, 2012 4:37 PM
Subject: Re: [TenTec] 564


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.

Walt


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
from
fraction of second to seconds
(2) During a recent ssb QSO the receive  would not always come back to
level
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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