I went through and replaced the rest of the maroon caps after another two had issues. Was able to get a much more solid picture, and eliminated the flickering on the screen. I finally took care of the cateract, boy what a difference. The glue separated without much effort and came off as one big sheet.
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How long should the horizontal take to settle in? The oscillator is noticeably drifting, enough to require readjusting every 30 seconds or so. It's not hard to get a lock, just hard to keep the lock.