This explains a lot... I made a string of resistors to measure the HV and by my calculations it's only outputting about 3.5KV. (Measured 80 VDC across the 1 meg resistor in a 50meg chain).
Flyback is almost definitely hosed then, despite not looking too bad. Makes sense given the higher resistance readings I got when I first tried to verify the windings.
Picture tube must be in pretty damn good shape if I can get a watchable picture at that low a potential.
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