Quote:
Originally Posted by Penthode
Hey, I have been following this thread and one thing seems to jump out at me. If the HV regulation is bad under load, what is the shape of the HV rectifier? Have you changed it? Is the filament lighting properly?
From what I have gathered on the thread, a big clue is the 32kv when the CRT is disconnected and the regulator cap removed. Putting on the regulator cap brings it down to 24kv with minimal loading by the regulator itself.
It is looking to me simply that the HV rectifier itself or associated circuitry (filament dropper resistor) is bad. But I think the key is the rectifier: if you have swapped it I'd try swapping again!
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i have tried several rectifier tubes including a solid state tube. the filiment does light so its no that and there is no filiment resistor.