Hello!
Sorry for this late entry. I did some work on a TR-3 some time ago and
documented it in my WEB at:
http://jvgavila.com/tr3.htm
Perhaps you can get some ideas from what I did.
Regards,
JOSE (VERY busy with my new shack project: http://jvgavila.com/shack20.htm )
--
73 EB5AGV - JOSE V. G
Just something puzzling me, what is the significance of the end of serial
letters R, B and G, etc?
73 Max
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ok sounds good, thanks for the headsup.
I found a really nice source for the tube data here:
http://tubedata.milbert.com/sheets11.html
If anyone knows of or has a PDF with all the tubes in it please let me know
where to find it. In the mean time I have downloaded the
individuals from the above l
Ron -
The switches are / were silver plated. Partly because of a very
damaging article that is circulating, some attack these switches with
"silver cleaner", which, whether abrasive OR chemical work by removing
silver molecules.
I have seen several otherwise excellent receivers destroyed an
My CD has a full, hi-resolution scan of the original manual, along with
hi-resolution color photographs of the receiver with all parts identified.
See info at
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
Clarence Lozano wrote:
HELLO TO EVERONE ON
Bill -
TP3 is on the calibrator board, which they direct you to Figure 13 to
find the _board_ . TP-3 is actually on the foil side OF the
calibrator board and is "sorta" identified on page 24 of the manual.
VERY tiny print! The object is to pick off the 50 kHz signal (between
the two fli
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Hi Group My name is Bill KB9IV. I'm having a heck of a time with my now
refurbish R4B .
After I replace most major caps and electrolytic I found the T8 Notch assembly
had a shorted cable to 145 VDC! I bought
a used T8 with cablesgreat success.
The R4B had now superb receive although
It has been a while since I had my TR3, but I was fairly sure that the band
switches were silver plated. The black "soot" is silver tarnish (still a great
conductor). I think the copper color would indicated you destroyed/removed the
thin silver plating.
Is anyone on the list aware of the TR3
I just acquired another TR-3 with external VFO and power supply this time and
it is extremely good condition and works perfectly.
This encouraged me to try the old power supply from the one I am refurnishing
to power up the new serial number 6985. The power
supply works as it does power up the
The old military series (which number I forget) is perfect, but some
sellers seem to think that brass is really solid gold when it comes to
pricing.
chuck, AC7GZ
AD5VJ Bob wrote:
I did find the proper connector here last night.
http://www.newark.com/jsp/displayProduct.jsp?sku=98F7746&CMP=KN
I did find the proper connector here last night.
http://www.newark.com/jsp/displayProduct.jsp?sku=98F7746&CMP=KNC-G1675&HBX_OU=50&HBX_PK=SWITCHCRAFT+S230
Downloaded the Data Sheet and the measurements are exactly correct.
Bob AD5VJ
> -Original Message-
> From: drakelist-boun...@zer
At 11:42 PM 11/16/2009, Robert Ladden wrote:
I should add the the mic connector is a .206" 3 conductor, not a 1/4 inch s=
tereo plug. I remember the Swithcraft 230.
73,
Bob WW3QB
Bob makes a good point. Many of these seem to have been changed back to
1/4" so make a test before you buy.
J
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