Originally Posted By: JohnK
Well, you already correctly identified the two 6800 uF capacitors(which are the most likely suspects)in a previous post. The rectifier is a grouping of usually four diodes(which aren't clear). But no, there isn't any simple way of determining without diagnostic equipment which are failing.


Thanks for your answer JohnK. So you think that the 6800uF caps are responsible for the annoying humming. Are they part of the rectifier circuit? Or do they have a different function?

Thanks!