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Original Message
RE: 450v plate and screen?
Posted by Alpha Al on June 8, 2017 at 11:25:37:
I don't have any choice. The power transformer is what it is.
The voltage is a little high, because the amp was designed to operate on 110VAC. I'm repairing the amp. I've seen a lot of them running high plate voltage, but don't usually see the red spots on one side of the plates.
If the tube is being stressed due to dissipation, it seems the entire plate should show color, not just one spot.