The Turn Of The Century Electrotherapy Museum
(C) Jeff Behary 2007


"The Tesla High Frequency Coil":  Its Construction And Uses
By:  George F. Haller
Elmer Tiling Cunningham

New York
(C) 1910

Secondary Oscillation Transformer Support

Secondary Coil wound with 28 B & S Double Cotton Covered Wire

Pine framework for Primary Coil

Copper Ribbon Primary Coil - 2 1/2 turns

Completed Oscillation Transformer

Complete Oscillation Transformer with Dischargers

Oscillation Transformer and Condenser Box

Transformer Oil is added to box...

Tesla Coil and Condenser Complete

Spark Gap is added

Front view of transparent box with components...

Top view of Rotary Spark Gap

Side view of Rotary Spark Gap