Originally posted by Shooter.556
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SD did put a surge arrestor in there (the reversed diode after the HV rectifiers) to protect the tubes if the incoming voltage is too high. If you're lucky the wallwart dies/shutsdown before any damage is done. Not so lucky in my case - it seems the step up transformer died then the (slightly too big) wallwart died.
Next powersupply set-up gets a fuse in the 16VAC line!
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