The Turn Of The Century Electrotherapy Museum
http://www.electrotherapymuseum.com
(C) Jeff Behary 2007



Kinraide Experiments:  "Extension-less Point - Limit-less Plane Spark Gap"


Isometric view:  Extension-less point to the left, Limit-less plane to the right


Left:  View from point side, Right:  View from plane side






Close-up of the two tungsten inlaid brass electrodes.  And Mejla.


Tungsten components are polished 1/4" rod for the plane and sharpened 1/8" rod for the point.


Refractory material (Mica) is used to shield the extension-less point.  The mica
helps to keep the discharge surface of the point to a minimum.


The mica is bolted to a piece of G10 phenolic.  Many thanks to Brian Foley for several pieces of G10!
The only other material suitable would have been asbestos plate.


The point protrudes only a few thousandths of an inch.  It is also made removable for sharpening.