There are a couple of things causing transformer hum in my sytem. My RPTV casues a slight amount of hum when turned on, and when my wife is using the blow dryer or curling iron I get a LOT of hum, even though those devices are being used on a completely seperate circuit. I'd be very interested in more info on the "electrolytic" solution as well.
Dealing with transformer hum
My Belles 150 makes a humming/vibrating sound which I'm told is due to the transformer. At average listening levels, the hum is not an issue at all, because it's not loud enough to be heard, but I do a lot of really low level listening at nights, and this hum is driving me absolutely nuts.
I don't have the option of really moving the amp much and there are no enclosures to hide it away in. Any ideas?
Thanks in advance,
I don't have the option of really moving the amp much and there are no enclosures to hide it away in. Any ideas?
Thanks in advance,
- ...
- 14 posts total
Here's an interesting reference to the Nelson Pass comments and a lot of discussion around hum circuits. You may have to join the diy site (which is a pretty cool place) to see the circuits themselves -- there's a link to get to the original posts and, after joining, you can see the attachments. BTW, the scope pictures of dc and transformer saturation at the end is very instructive -- I loved the comment "a 60Hz transformer is basically a big, heavy bad antenna" (that may not be an exact quote). Here's the site: http://www.diyaudio.com/forums/showthread/t-2080.html |
- 14 posts total