Bob -
Have you checked to ensure that relay K2 (left rear corner with chassis
upside down and facing you) is energizing when you switch to X-CW?
Also, the SIDEBAND switch must be in the -X position.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
<www.k4oah.com>
AD5VJ Bob wrote:
Also wanted to mention
I noticed that while the plate amperes meter does not change when I increase
the XMTR gain while trying to tune, the S units meter
does rise considerably, the 'PLATE AMPERES' meter actually decreases a tad not
much only about half a division.
Also while I am listening to the morning show at 3843 I am in 'SIDEBAND' 'SSB'
with the 'RF TUNE' control peaked and now the S meter
is reacting much better than it did before I cleaned the relay - but I am also
noticing the 'PLATE AMPERES' meter moves slightly at
the 'S UNITS' meter reaches S 20 and above.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of AD5VJ Bob
Sent: Monday, January 11, 2010 9:16 AM
To: 'Mark Nace'; [email protected]; 'Drakelist'
Subject: Re: [Drakelist] TR-3
Good morning everyone:
I stayed up last night and did the resistance checks.
Found one tube (V17 - 6AQ5) which when checking it you could
warble the tube and the measurements would change drastically.
So I had another and changed it and now it is much more stable.
Thought I had found the problem and tried again to no avail.
So I took it apart again and cleaned the relay contacts. It
seems to be rx'ing better, but still wont transmit anything.
I am planning on doing voltage measurements today sometime,
unless anyone has another idea.
It is such a laborious task I am open to another suggestion Hi Hi
Bob AD5VJ
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