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#1
02-09-2020, 07:47 PM
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These are good performers for sure! I let it run for several hours, set the gray scale a couple hours ago and the picture looks perfect to me. I turned it off to take a picture of it, and a few minutes after I turned it back on, it slowly got really bright and had retrace lines. No distinct color, it was like I was cranking the screen control. I turned it off & back on and it's been good for an hour now. Not sure what that was about but I won't be surprised to see it again.
The cabinet cleaned up really nice. Not sure why the pictures got rotated. 
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#2
02-09-2020, 09:34 PM
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Issues you're having were very common after some tubes got rejuvenated. I always imagined little pieces of "crud" that got blasted off the cathode during the process were floating around in the neck and sometimes settled between the gun elements resulting in the arcing and flashing. After awhile things will settle down. As far as the bright picture, if it continues to act up try shorting pin 5 of the CRT socket to ground. There is a 100K resistor (R14), and a cap (C2) in parallel to ground from pin 5, just solder a jumper across the cap. This will darken the picture slightly, but you can turn the screen up to compensate for it. This will keep the picture from going bright when a piece of crud lands between the screen and grid elements of the gun.
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