Quote:
Originally Posted by Electronic M
There is no such thing as a 'gray metrix(sic) CRT'. The standard gray face phosphor deposition method came first and has no such fancy marketing name. Then much later someone got the idea that if one placed a black outline of the dot grid on the screen before depositing the phosphor dots, thus outlining them, that it would improve contrast, focus, and convergence(which it does).
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I think he is referring to the faceplate coloring. Grey tinted VS more dark tinted. Just my WAG.
I would fancy to guess All 1983-on CRT's are black matrix. Likely before that. Pretty sure the RCA with the removable focus connector is.