hum in system, ground loon? 60hz?

Jfrech: i think ya got it right in the title of your thread. it is a "ground loon" ( runnerup state bird of minnesota, after the mosquito). only thing to do is shoot it.

I have had an incredible hum caused by my cable connection. (as in Cable TV)

Ok Jtinn, some progress. I lifted the ground on the vk60 with a cheater plug. No change. Used a extension cord and plugged into a different circuit, with/with out cheater plug. No change. On a whim, I pulled the interconnects from preamp to amp. Hum doubled or tripled. Seems like it is in my amp now. Bad tubes? Old tubes? Something else in the amp? I've had the amp for just over a year now.

Thanks

Hum should probably get quite a bit louder without your preamp or source attached. Is the hum out of both channels? Can you jump pins 2 & 3 on your amps input? If you still get a hum, I would send it back to Victor and the boys at BAT.

Hum is the level on both channels. What use alligator clips and wire to short? and which ones are 2 and 3? I think it's time to call my dealer and let him help. Thanks for all the comments!!!