I'd like to build a variable speed control for a single speed Dremel tool. Dremel makes a foot switch but I would like a "dial" type. I did find plans for an SCR unit with some form of feedback, but it would't run the tool at full speed. TIA Colin -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.