Quote:
Originally Posted by maxhifi
...And now, in 2017, it's really hard to find an early Trinitron with a good enough picture tube to make a good picture, they all seem to be off due to weak tubes. I'm not sure if it's because they were so good that people watched them until there was nothing left, or if they have worse longevity than the domestic tubes.
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I suspect a good part of it is that the Trinitrons probably were run at higher beam current than other tubes, which helped give them their brighter picture. This was possible because of the tensioned grille shadow mask, which did not deform with heat (until it got so hot that the tension was released.)