Quote Originally Posted by K7SGJ View Post
You may want to try a couple of those split ferrite beads that you put around the keyboard cable and either snap together, or tywrap together. I'd put one at each end of the keyboard cable. You may be able to find a couple on an old modem telco cable.
That's my thought, going to grab a couple from Rat Shack, and try them out (I don't think I have any laying around right now).