Hi Terry, Try a much bigger plate, say 4' diameter. > Hi Jeff, > > I modeled this today, The bottom almost has to be a toroid too because > the sharp metal edges of anything else will provide streamer breakout > points. I ran a test (computer simulation) where I just used a pizza pan > on the bottom with a 2 inch radius tube attached. The top turns of the > coil were the first streamer break out point! (that's bad...) then the 2 > Terry