The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com  Static Electric Tests: Partially Rectifying Tesla Coil Outputs  Preparing Cherry Box with wax and glass insulating rods (Kinraide's method)  Poured Coils - Sprung a few leaks this time!  7" Pancake Coils, 2 1/2 turn primary coils, embedded in 9" x 2" of wax. Placed in box, embedded further with wax. Center posts are .45 cal brass cartridges.  Schematic  Sparks do seem to be getting static properties, appearance, and sound. Note the color of the spark discharges changes from left to right. Click here for movie.  Thanks to Brian Foley for the interesting "Plane" electrodes - handles from arc lights originally.  Spark Gaps are point-plate variety. Point is sharpened 1/8" diameter tungsten rod, Plate is 1.25" diameter tungsten disk. One is used in each leg of the circuit for this test, cap (.05 mfd) is in parallel with 3.5 kV NST.  Appearance of sparks only from point to plane - output of Pancake Coils alone.
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