Garey,
Thanks, but I already had this from the John Kriner kit. My problem
is step 10. It simply will not fit. I guess I'll have to cut out the
right side of the half box, but I assume it is meant to shield the
relay. The PCB cannot be trimmed on that end, the plug is there. My
TR-3 has a low SN so it may be different. All I need is 1/8 inch.
BTW, I found a message from you in the archives explaining the
differences in the chokes in the relay area. That helped.
73,
Bob WW3QB
At 10:22 PM 1/1/2009, you wrote:
Bob -
I don't know if you have this or not. Perhaps it will help?
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
Robert Ladden wrote:
Happy New Year,
I have a project TR-3 too and it still had the original open relay.
It was a problem so I decided to replace it. I have the plug-in PCB
but I am having trouble physically installing it. It seems the half
box on my TR-3 is not long enough for the PCB. I need about 1/8
inch more to line up with the connections. If looking from the back
it is the right side. So do I cut out that piece of the half box,
leaving only the back? Has anyone done this? It looks like the PCB
will work otherwise.
The wiring is a little different than the TR-4 (no fuse bulb and
other changes), but I think I can figure that out (famous last
words). But not being able to even get the PCB in is a big problem.
73,
Bob WW3QB
John -
Drake sold a conversion kit for the TR series and the pre-C Line
T-4X transmitters. The early C-Line used a British made (Valpey)
plug-in relay that had a 15k coil impedance, and the wire was so
fine that is was either breaking from corrosion at the solder tabs
or mechanical stress caused by the heat variations. They changed
to a 2.5k relay, which was a drop-in replacement except for a 1.5k
/ 1W resistor in series with the coil. The added resistor is
sometimes installed across the socket for the 6EV7, between a
blank pin and the plate. I have the relay p/n, but not at
hand. Someone else has probably already sent it to you
anyway. It's a current P&B (TYCO) relay available from Mouser and
others for about $16.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
John King wrote:
My TR 3 has been converted to the plug in type relay. Can anyone
tell me the manufacturer of the relay, its' part number, where I
can get it and the price? Thanks and 73, John, K5PGW
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