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Old 04 March 2021, 22:33   #2
Rotareneg
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Join Date: Sep 2017
Location: Kansas, USA
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Colors not being aligned on an CRT is due to poor convergence, which means the electron beams for red, green, and blue are not aimed exactly where they're supposed to. This is generally adjusted by rotating the magnets that surround the neck of the CRT, but it's a notoriously tricky process that can take a while to do even if you know what you're doing, and that's assuming the 1083 even has adjustable convergence (not all CRTs do.)

As far as CRTs "decaying", yes, they do. The values of various electronic components can change with age, the electron guns wear out, and the phosphors degrade from use (that's what causes burn-in.)
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