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Gray and Green 21FBP22 Numbers
I hobbled-up the Green CRT with the CTC2B chassis and checked it out. It's GREEN color bar seemed slightly more vivid then the Gray CRT but the RED color bar seemed slightly less vivid then the Gray. Both produced virtually the same quality pictures. I'll probably run with the Gray and keep the Green as backup. Only numbers were on the pin cap and I assume they were serial #:
Gray- two gray dots and a green #N JE63619
Green-two green dots, and a bronze #L GA45493.
Seems the Gray is a later number? The May,1961 21FBP22 RCA data sheet indicates all Sulfide Type, aluminized. Is there some CRT guru that can decipher the meaning of the SR# and screen # on the Green CRT?
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