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today, i did some more voltage checking & here is what i found.
i removed the plate cap off of the H.O. tube & checked the B+ off the 5U4 rectifier & got a reading of 260 VDC. i could also hear the vertical output transformer working.
with the plate cap on, when i first apply power to the chassis, the B+ voltage taken off the 5U4 drops down from 260 v to 215 volts and then rises to 225 when the "ringing" starts from the H.O. transformer.
i also notice that the 5U4 puts off substantially more heat with the plate cap on then with it off.
also, i taken a voltage reading off of the cathode of the 6AU4 damper & only got a reading of 200 volts.
everything seem to point to a bad flyback transformer, however, the flyback appears to be in very good condition. there is no wax drippage & the tire is not warped or distorted. there is no apparent sign of damage.
same as the yoke, there is no sign of corrosion or any other problem.
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