Well now that I have bought this "In Need" TR-4C, I need some parts. I
ordered some tubes I didn't have on hand plus a new 4 section can
electrolytic made for this radio from Hayseed Hamfest today. (I had
purchased some of Tom's caps for my Heath DX-60A and DX-60B and liked them
very much. They were new fresh electrolytics in the proper size can with
slightly increased cap values and voltage rating). I had a spare Drake knob
to replace the missing one on the radio. I'll order a new relay to replace
the missing one from Mouser. I'll probably replace the 15 ohm 1 watt
resistors under the finals and the 68 ohm 1/2 watt ones under there too.
It's been my experience the heat causes these resistors to "drift". I have
a resistor to replace the burned out one in series with the relay coil. I
like to use Ohmite OX and OY resistors (one and two watt) for the 15 ohm and
68 ohm replacement resistors under the finals.
I'm in need of at least two Drake crystals. They are 43.6 Mhz and 42.5 Mhz,
as they are missing in the radio. I have the other three (43.0 Mhz, 35.5
Mhz, and 21.5 Mhz crystals). If anyone has these two crystals as "extra",
I would be interested in buying them from you. Or I'd even buy all 5
crystals if you have them. (It's been my experience some Drake crystals
"drift" off of their value and you can't "zero" them in when going from band
to band. So, a spare or two would be nice. I have not tested my three to
find out if they are within a resonable distance from their stated
frequency.
I think I can manage all else for now, but the 43.6 Mhz and 42.5 Mhz
crystals need to found.
One last thing. If anyone has a MS-4 speaker and or a AC-4 power supply for
sale, I'd be interested in them. My plan is to re-build the power supply
once found with The Heathkit Shop's replacement AC-4R power supply board. I
have used one before in another AC-4 and the board and finished "upgrade"
look beautiful and work great. I'm using it right now on my TR-4.
Consequently, the shape of the "present electrolytics in an available AC-4
does not interest me.
Thanks for taking the time to read this. Let me know if you have anything
available I might be able to use for this project.
73,
Lee, w0vt
Houston, TX
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