Yep, has to be on-on-on. Schematic and info at bottom of page here: http://www.simple-answer.com/DIY.html http://www.simple-answer.com/3_pos_switch.jpg > I once found a simple wiring circuit to convert a DP3T on/off/on switch > into a 1P3T on/on/on switch but I cant find it anymore. Can anyone help > out? Google is not helping much :(