[NCC] rfi every 64 kc

[WW3S]

since I had today off, I've been trying to track down the interference 
that's been wiping out 160m here. It's a loud buzz, like power line noise, 
every 64 kc....it seems centered at 1.834 mhz, and it's close to 10kc 
wide... I hear it at 1.899, 1.770, 1.703, etc....I hear it on both radios, 
now heres the catch....I have 6 antennas, with a 2x6 box at the tower, and 2 
feedlines coming in to the shack. With no antennas selected, I still hear 
it....with no feedline connected, I dont....so it's like the feedline is 
picking it up....so looking for suggestions on what to look for (with all 
the electronics in the house, I'm thinking some sort of wall charger) and 
also ways to keep the feedline from picking it up....

73, Jamie WW3S