Quote:
Originally Posted by freakaftr8
Right. I was able to achieve low current with a CTC 17 but the linearity was the same as you described. if I were to get it better to my liking, the H cathode current was not happy about this. I would look to the capacitors in the horizontal section, including filters and see if any are off spec?
Also have you checked cathode current?
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So, narrower in the middle than on the sides of the screen? That's interesting, I wonder if it was intentional, or what could cause this issue. Logic tells me that as the beam scans across the screen, a small change in beam angle would make a bigger difference in the position of the spot at the edges of the screen versus in the middle just due to geometry - and there must me something in the set which compensates for this. I don't understand how TVs work well enough to be able to tell what, though.
I have not checked cathode current. What was the effect on the picture when you adjusted the linearity control on your CTC17?