The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com Homemade Diathermy Style Coil / Kit I made 3 of these to sell for Mejla.  She needs knee surgery on both of her rear legs, which is going to cost us a small fortune! Small coil, but exhibits phantom streamers and interesting corona effects High energy high current 40kV doorknob cap .002 mfd (retails for $139+!), 6 brass segments with 1/4" tungsten for 3 series spark gap, two Tesla / Oudin Coils - fine wire, and coarse wire! 26 AWG close wound, and 28 AWG double silk covered Cherry and plywood base. Our gizzard, Mejla. A neat coil, approx. 1.8 MHz! Coil was tested again, this time with 15kV 60mA!  Still only .002 mfd, discharges extended to nearly 8" with a 5 series spark gap.  Gap could be opened more, but this test will continue under oil! Click here for a movie! (C) Jeff Behary, 2008