The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com Cip's First Coil I built this for my friend Ciprian Timbal. Its a small coil, made with parts from  a TIG welder (arc stabilizer) plus a few extras Here is the spark gap - its from a Miller TIG Copper Ribbon Primary Coil, Silk Covered Secondary Coil The Secondary Coil is wound on a hard rubber Violet Ray casing.  It actually is about the same dimensions as the coil Tesla used in "Light And Other High Frequency Phenomena" lecture Frequency is high - haven't calculated it yet, but, oh, the ozone just pours out I was blowing on the discharge, and it becomes almost pure ionisation Sparks are around 3" long It looks nice from the top view Moved the camera accidentally here! Cap is mica, .002 mfd only! Mejla has a new toy too!