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Icelander53
02-19-2014, 04:01 AM
Totally new to amplifiers. I bought a little Vox Mini 5 that runs off either electric or battery. When I'm running off house electricity there is a hum from the amp and when I touch the 1/4 in plug into my Uke it quiets the hum. So I'm acting as a ground I guess. Is there a way I can make the hum go away or is this a defect in the amp? I don't think it's the amp because it isn't there when running on battery. Any help would be appreciated.

strumsilly
02-19-2014, 04:36 AM
is your cable tv box plugged onto the same circuit?? you could be in the dreaded ground loop zone
http://www.audioholics.com/home-theater-connection/ground-loops-eliminating-system-hum-and-buzz

Icelander53
02-19-2014, 07:55 AM
Don't have cable but do have my computer line in the same room. I have another amp in there and it doesn't do it on that amp?