RCA CTC-12 estate sale find

[Adam]

I had left out what I think is an important bit of information, when I had first turned on the set, after it had sat for 3 months, there was a spark inside the crt neck, like when you hit the red button on the rejuvenator. Whatever it was is what I think may have lowered the emission of the red gun, the green and blue seem unaffected. The 1/4 way up the meter for the red is after its been on for about 5 minutes. Anyway, I have b/w sets that only register that high that produce a bright enough picture, even though the tester puts it in the "bad" area. And I have some color brighteners, too.

I think my major all green problem is caused by these funky grid voltages, seeing the green is way too high and the others too low. I checked the 2 resistors between each of the grids and the 400v supply, they were all good, it's almost never something easy to fix that'swrong with these sets.