Quote:
Originally Posted by nasadowsk
The 23EGP22 was basically successful? Ok, I mean, it worked, but wasn’t it kind of a dud?
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In 1958 CBS rolled out a rectangular color CRT that was so lousy they ended up recalling almost all the sets made using it (3 survivors are known).
Compared to that the 23EGP22, which had longevity issues from bad manufacturing, and weird phosphor colors that made accurate color hard to achieve, was basically successful in that the sets actually DID work from new and weren't recalled.... While the EGP wasn't the first rectangular tube to market and wasn't the best, one can argue it was successful compared to the 1958 CBS tube.
Quote:
Originally Posted by timmy
Overall I was wondering if any of the companies that manufactured the round 21 inch tube we’re any better then the other. Who maybe built a longer lasting tube ? My experience with sylvania tubes were not good. The other question is was the rca hi lite made better or improved from the earlier versions. Not so much the rare earth materials but rather the gun itself.
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Sylvania I sort of regard as the best and worst color CRT maker.....They had a great phosphor formula that yields BEAUTIFUL color on the one Sylvania round tube I have and some of their rectangular tubes were comparably beautiful in action, but the guns were not as long lived as most other brands... I'd argue Sylvania color tube longevity was among the worst of the big players in the industry.
RCA and Zenith tubes tended to have good life and good performance. For RCA Hi-Lite was the newly built high quality label and Colorama was the lower tier rebuild stuff.
I think I heard the screen grading went all the way to grade E and that most of those were test Jig CRTs.