[Drake] TR3 Issue

[MNACE]

Probably need to check the relay contacts.....it is an old open-frame type,
and I have had numerous issues with it.  Also, make sure the jacks that have
a "make-break" contact are clean...use some deoxit. Go ahead and remove the
CW key plug until you get some incoming signals.   Carefully deoxit all the
switch wafer contacts (sparingly !).  Also, one other thing, make sure the
remote VFO jumper is in place in the remote VFO jack on the bottom.  (if you
are not using an external VFO).  Usually, it is just a bare wire all the way
around the female Cinch plug face.  Also, could be that someone did some
major diddling with the alignment.....I have seen that too....

Let's keep the dialog going with all of us until you fix this puppy......
Mark
N5KAE

----- Original Message ----- 
From: "Robert Wood" <radiorob at swbell.net>
To: <drake at mailman.qth.net>
Sent: Wednesday, April 11, 2007 7:04 PM
Subject: [Drake] TR3 Issue


> Hello All,
>
> I just got me a TR3 from EBay and it is not working.  After I plugged it
in, the
> 150v reg. tube was sparking.  I replaced it with another one and solved
the
> sparking issue.
>
> I do not receive any signal switching between all bands and modes (I have
an
> open 1/4 plug in the CW plug).  All of the voltages from my AC4 are good,
and I
> validated the regulated 150 voltage is good.  I tested also tested all of
the
> tubes on a tube tester and they all indicate good.  I can get the speaker
to hum
> by touching volt/ohm meter on audio pot, and the carrier detect pot, but
that is
> as far as I have gone.  Another interesting symptom is the S meter goes
all the
> way to the right after the radio warms up.  I appreciate any insight you
can
> provide me on this issue.
>
> Thanks,
>
> Robert
>
> WB5MWL
>
>
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