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sparkymike · 15th Jun 2019, 8:00 am

Apparently, the preamplifier can be unplugged and the power amp can be run on its own, so if the hum still persists, then I will know which section it is in.
Mike.

15th Jun 2019, 8:00 am	#15
sparkymike Octode Join Date: Dec 2006 Location: Colchester, Essex, UK. Posts: 1,076	Re: Bass Guitar amplifier problem Apparently, the preamplifier can be unplugged and the power amp can be run on its own, so if the hum still persists, then I will know which section it is in. Mike.