Quote:
Originally Posted by Electronic M
Sometimes the glass spontaneously cracks from manufacturing defects or improper care/handling.
Case in point back in October I found a CTC16 with a ruined flyback, and an OK 21FBP22. I installed that 21FBP22 in my Zenith Franken Chancellor and it worked fine for an hour (2 half hour runs) then the glass spontaneously cracked at one of the base leads and it took in air and failed gassy.
Once a CRT gets gassy enough that it stops displaying an image, lugs down the HV, and starts glowing purple in the neck that tube is usually FUBAR.
I had to source another tube after mine cracked.
I just thank my lucky stars I'm not miniman82....He had a basically priceless metal cone prototype of the 15GP22 spontaneously crack and fail on him... Loosing a tube that irreplaceable has to royally suck!
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Well how hard would a 23EDP4 picture tube be to locate?
01-10-2022, 08:58 PM
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