The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com High Frequency Ignition Coil Concept Test Originally based on Tesla / Seeley Patents Simple Concept - Electromagnet (Self-Inductance), Capacitor (.1 mfd), Multilayered Tesla Coil (from Violet Ray device), 12V battery No interrupter points are used for this test, rather the red wire is used manually to short to the electromagnet-capacitor lead. This is done at a slow rate, 1-2 times per second only.  Still images and movie below! Sparks over 1" long. Click here for a movie!