The Turn Of The Century Electrotherapy
New Tesla Coil
With New Spark Gaps
A Compact Modern Breadboard Tesla Coil made with modern materials
9kV 60mA Transformer, 4 Series Behary Spark Gap, 3 .002 mfd Doorknob Caps, Tesla Coil
The base is 1.25" thick Acrylic
Caps wired for .006 mfd at 40kV. Vintage rubber coated wire used here!
Tesla Secondary Coil is removable - rests on the top of an original ceramic Edison Battery Jar Lid courtesy of Robert Campbell!
I think this will be a great surprise at lectures. Primary is 5 turns of 1" Copper Ribbon, separated by .1875" thick EPDM rubber.
Secondary is wound with 250 turns of quadruple-silk covered magnet wire, 30 AWG.
Closeup of winding. Secondary is 4.5" OD and 9.75" of winding.
Approx. 26 turns per inch.
Topload is a 6" Copper Sphere. Discharge point made of a brass bell and 3/8" diameter ball terminal.
Arcs to metal rod
Click here for a movie!
Brush discharge exceeds 12".