On 10/3/2006 at 8:41 AM Cameron Kaiser wrote: >Stupid question -- what would be the anode and cathode in that case? I'm >sure this is an obvious thing but I don't have a lot of experience with >this. The negative terminal of the DC source goes to the tool, so that would make it the cathode. This method is supposed to be among the gentlest of cleaning methods. Cheers, Chuck