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Old 08-03-2026, 01:33 PM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
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If you have a HV scope probe rated for the focus voltage I'd try scoping the focus wire to the CRT and seeing if it's somehow being modulated by the sweep a similar amount to the DC difference between focused center and focused edges.
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