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Thanks, lots of good stuff to think about.
If I'm reading the article correctly, it says my single-magnet iron trap is in the right spot, "well behind the flags."
With that and the focus coil both adjusted, the focus control works within the middle of its range. You can adjust so the picture is sharp, then too sharp & grainy, and if you keep going, it will eventually blur again. Which seems normal to me.
Re the trailing, a little while ago I switched from the DVD player to rabbit ears (receiving signal from my agile modulator across the house). Maybe that player just overloads this AGC-less set. With rabbit ears, I can see a tiny amount of trailing if I look hard, but I doubt anyone else would notice it. The picture seems generally better & easier to adjust in other ways, too. Riders doesn't have any adjustment info for DC restoration.
Re the width, I checked voltages on the 6BG6 tube. Pins 3 and 5 are right on the money. Pin 8 is a little low, 224v rather than 250v. I checked the resistance of the parallel 2W resistors (R247/R301) in place, getting 14.3K (would the ideal would be 12-something K ?). I don't have any 2W resistors in the house, but it will be easy enough to order replacements and see what happens if I replace those two.
Wish I could post a photo showing the improved picture, but my danged auto-everything camera can't focus the TV image well enough to show the difference. Maybe the bulbed face of the CRT is tricking it.
Anyhow, thx for all of the good advice.
Phil
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