Hum noise in ModWright 36.5 230v unit

I am wondering if somebody else experienced a hum noise issue with ModWright 36.5 preamp. This is 230v unit.

Thanks in advance.

abronfer08-29-2009 8:45pm

ndeslions Details Discussions Posts This discussion Message User 79 posts 09-01-2009 at 01:13pm Copy Comment URL Report Comment Edit Delete This is a know problem, it happens on old units if you got a wall voltage higher than 230. You should contact Dan, i think he has new transformers that solve this problem.