Recently I bought a pedal board for the few pedals I have. I have an old (70s) King Vox wah that I use. A couple years ago I put in a DPDT switch so it is now true bypass when off because it did suck a good bit a tone until I did that. Now I have a new issue. Being on a board now, the pedal is much closer to the power strip I use to power the other pedals. When the wah is switched on, it picks up a nasty 60 cycle hum from the power strip. Moving it away from the strip eliminates the hum but is not a practical solution as it needs to be a good 5-6 feet away. Any ideas how to keep the pedal on the board and not have the hum? Going all battery is not possible because 2 of the pedals are external power only.