I have the electronics that Rutex sold as a stand alone THC. It worked quite well. I upgraded my table to use his r510a plasma control board which has a thc included in the circutry and no longer require it. I have 2 control boards (1 new and unused for a backup), the set of switches and 1 board installed in a cheap steel case. If you are interested, please email me at email@example.com.