12" ge b/w

[Spinning Head]

I brought home this 12" GE B/W from my in laws basement a couple months back. It has no raster. HV is 12kV, cathode is 60V, 1st grid is 25V, 2nd grid is 160V. Filament is 7V AC. It is a XB chassis, from about '78. The only image occurs briefly after cutting power, when the deflection collapses. I disabled the vertical sweep, and the resulting horiz. line is dim. My thought here was if it was some sort of tube cutoff issue, the screen would remain black, but with low emission, a would see the line. I normally wouldn't mess with something like this, but it has become something of a challenge. From what I hear, they used this set for 30 years as a daily watcher in the kitchen. I'm beginning to think it has a bad pix tube, but I don't have pix tube tester to confirm it.