Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx> Hi Steve, How did you keep hits to the primary from killing your bricks?? Gerry R
Original poster: Steve Conner <steve@xxxxxxxxxxxx>On my current research coil, I used 40N60s and set the primary current limit to 400A. (the frequency is around 220kHz.) I have got sparks up to 4.3 times the length of my secondary, and too many flashovers and primary strikes to count, but never lost any IGBTs yet. You can't get less bench time than none.Steve Conner http://www.scopeboy.com/