[old_tv_nut]

Reopening this "I've been blessed" CTC-5 thread to cry about the brightness control drift getting worse and worse. Sarts out with brightness way high and over 5-10 minutes warmup drops down to the point where the maximum control setting is not quite high enough.

Right now, I don't know what's drifting, cathodes, G1's, G2's?
I replaced the luminance output back when I first saw it, and didn't get any improvement.

The thing is, as I have gotten older, it's become difficult or impossible for me to pull the chassis to work on.

I'm thinking I will open the back and measure what I can, voltages and resistor values, to see if I can determine what it is that's doing the drifting, and hope it's something easy to get to.

Don't know if I will get to it before the holidays.

Wish me luck!