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After looking inside I'm not sure how accurate the "was working" description was, or how long ago.
Set was dead, thermal delay relay clicked on and heaters lit but not a sound, reason was the 5U4 had gone to air, getter white, replaced it and brought it up slowly, now I had sound but no light on the screen, it looked like the CRT heater wasn't even lit.
The CRT had a brightener on it, the set is a parallel heater set, the brightener was set to Series, I just removed it and then the heater came on, a little fiddling with the horiz hold coil and I got a weak raster, horizontal is way off and the vertical is really screwed up.
The CRT checks very, very weak, the glass around the heater is completely blackend with Tungsten deposits so it has a ton of hours on it.
I put the Beltron on it and it came to life with a big show of sparks in the neck and great emissions, the life test is pretty bad though.
Anyhow I have a NOS CRT that will work in this set, it's a series string tube with an 8.4 volt heater but I figure if I put the brightener back on it should come out just about right!
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