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I see plenty of excellent-emission CRTs from the 40s to the 90s. I think there could be some truth to the idea that lots of them are bad, in that people would keep repairing TVs until the tube went bad; then shove it in the garage or basement. But if someone just decided to upgrade to a bigger set, or a newer one because they were tech nuts or just wanted to spend $, the old set would be put in a back room and seldom (but SOMETIMES) fired up; keeping the tube good. How do I come up with this? : I seldom see a bad CRT in a TV with other major problems. I usually find the tube bad in a set which probably had a good working chassis 40 years ago, then the caps dried out since. If the flyback is shot, the CRT is usually fine....
Charles
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Collecting & restoring TVs in Los Angeles since age 10
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