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One of my ECPs has a problem with the red tube. No, not the ECP I gave yesterday to my 3-year-old neighbor.
See attached picture. Sorry, I don't have my real digicam with me, so this was taken with a webcam.
The picture was taken with the lens removed. The corners are crystal sharp and the lines are hairline thin (the picture makes them look thick). In the corners, the grid lines look like they're supposed to... like they do on the Blue and Green tubes on this ECP, and like my other ECPs.
But the center is blurry as shown on the picture. And it is as blurry on the screen.
I can't focus it out optically with the lense, because it's this way on the phosphor.
I don't see any fungus and the glycol is crystal clear.
Adjusting the focus pots by the G2 bias module doesn't help.
Any guesses?
Is it with the tube?
Should I try swapping out the R neckboard?
Thanks,
Clarence

See attached picture. Sorry, I don't have my real digicam with me, so this was taken with a webcam.
The picture was taken with the lens removed. The corners are crystal sharp and the lines are hairline thin (the picture makes them look thick). In the corners, the grid lines look like they're supposed to... like they do on the Blue and Green tubes on this ECP, and like my other ECPs.
But the center is blurry as shown on the picture. And it is as blurry on the screen.
I can't focus it out optically with the lense, because it's this way on the phosphor.
I don't see any fungus and the glycol is crystal clear.
Adjusting the focus pots by the G2 bias module doesn't help.
Any guesses?
Is it with the tube?
Should I try swapping out the R neckboard?
Thanks,
Clarence
