Restoration begins on Ed Reitan's CTC-7

[stromberg6]

Interesting observation about the red phosphor difference between the 21CYP22, and the "A" version of the same CRT. I have an blond Anderson CTC-7B with a very poorly rebuilt (by RCA) "A" tube. The red phosphors tend to look rather dull, and lean toward orange, but not as bad as the 23EGP22 junk from Motorola . The green is amazingly bright, and football games look pretty good. The blue appears normal, whatever that is for this particular tube. It's loaded with dead phosphor dots, and doesn't focus well.
I am reminded of discussions about the differences among the 21AXP22, and 21AXP22A about the difference in screen phosphors. Of course we know why the tube was re-designed for HV flash protection, but the phosphor composition of the screens also were changed, IMO. Great thread ! So happy that the set is in good hands!