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April 14, 2024, 07:00:42 PM

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Fender deluxe 85 frying power transistors

Started by mccutter, January 01, 2024, 03:03:40 PM

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If the hum was not present before then a fair chance you have left off a ground connection somewhere. Check continuity from chassis to all common points.
Other possible issue is you have grounded something that should not be grounded and now have a ground loop. Sometimes there are isolation washers under screws that can easy get missed.