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I don't have a schematic as of yet, but it looks like this one uses passive components in the pincushion correction circuit. I did correct the picture tilt with the yoke. The convergence, if not perfect, is really good. The horizontal edges are pretty straight, it's just the top and bottom that look off. There is not enough range in the pincushion adjustments to take care of the top and bottom
I remember my grandparents' old Magnavox console, they had a rebuilt CRT (25V delta gun) installed in the late 80s and it never could be adjusted for good purity, convergence, or pincushion; I sure as heck tried, and that was after the TV repair guy put it in.
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Erich Loepke
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