Musical Fidelity P270 Humming noise!

TheRambler · 5th February 2010, 08:52 AM

Hi dear Members,

My Power Amp MF P270 has a humming noise continously for sure originated in two transformers. As a real ameteur in electronics i do appreciate any idea to silence this trouble. Thanks.
Rambler

jaycee · 5th February 2010, 10:44 AM

Make sure the bolts holding the transformers down are not loose, but don't overtighten them.

This could be a mains supply problem (DC offset) in which case you would need a line conditioner.

5th February 2010, 08:52 AM	#1
TheRambler diyAudio Member Join Date: Feb 2010	Musical Fidelity P270 Humming noise! Hi dear Members, My Power Amp MF P270 has a humming noise continously for sure originated in two transformers. As a real ameteur in electronics i do appreciate any idea to silence this trouble. Thanks. Rambler

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5th February 2010, 10:44 AM	#2
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Make sure the bolts holding the transformers down are not loose, but don't overtighten them. This could be a mains supply problem (DC offset) in which case you would need a line conditioner.