Thread: HV PSU Question
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Old 10th Feb 2018, 1:18 am   #4
Skywave
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Join Date: Jun 2006
Location: Chard, South Somerset, UK.
Posts: 7,457
Default Re: HV PSU Question

Could just be loose laminations. When I have a mains transformer that I think is suspect, my first test is to place in the bench, power it up on no-load and periodically test the temperature of the laminations. If they are more than 'just warm', most likely there will be a shorted turn or two - probably in the primary winding.

Al.
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