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The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com Tesla "Pancake Coils": Redefining Tesla Technologies |
 Reproduction "Kilowatt" Kinraide Coil 1000 watt 2000V Microwave Oven Transformer Capacitor: Oil-filled Sangamo .1 MFD @ 4000 WVDC Spark Gap: 4-series, 1/2" Diameter Tungsten with Aluminum Heat Sinks Pancake Coils: 9" Diameter Primaries: 2 1/2 turns 1/2" copper ribbon Secondaries: 300 turns 31 AWG magnet wire Insulation: Paraffin Wax dissolved in Paraffin Oil Input power: 110V @ 15A |
  Testing coils: 1" Flame to 10" Discharge |
 Closeup of Flaming Ribbon Discharge |
 Reproduction Kinraide Style Quenched Spark Gap: Demonstration Apparatus Spark Gap Electrodes: 6" Diameter Machined Graphite 3500 Volt 30mA Neon Sign Transformer .05 MFD 4000V Oil-Filled Capacitor 8" Pancake Coil Input power: 110V @ 50-100W |
 It is possible to use this spark gap on less than a 1000V circuit and maintain a steady oscillation. It would be preferred to use tungsten plates, but at this time cost and availability is next to impossible. Surface where arc occurs (Left) In Operation (Right) |
 Copy of Kinraide's original patent drawing granted in the United Kingdom. Kinraide originally used hollowed copper plates. |
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Example of 6" Diameter Quenched Gap with
twin Pancake System: Low Power (left), High Power (right) Apparatus details: Fischer Cenco X-Ray Coil 1000V 1.5A Power Transformer with adjustable reactance coil .6 MFD 1000V Mica Capacitor 7" Pancake Coils embedded in Beeswax / Rosin mixture |
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