Quote:
Originally Posted by Kevin Kuehn
Very nice find! Unfortunately those 19AP4's are very problematic after all these years , hard to find a strong one these days. I would suspect your set originally came with a DuMont CRT, after all they did make their own tubes.
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It's kind of hard to make out, but it looks like the RCA CRT has the code date stamped on the locating key. Generally means that it is a replacement.