Flat Spiral Pancake & Multilayer Secondary Coils (fwd)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Chip Atkinson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <chip-at-pupman-dot-com>

---------- Forwarded message ----------
Date: Sat, 16 Feb 2002 05:04:32 
From: Jeff Behary <jeff_behary-at-hotmail-dot-com>
To: chip-at-pupman-dot-com, tesla-at-pupman-dot-com
Subject: REQUEST:  Flat Spiral Pancake & Multilayer Secondary Coils

Chip,
Please publish this email at Pupman.

To all Tesla enthusiasts:

My researches of the last 6 months have been primarily one which has not 
been touched since the early 1900s.  Multi-layer Disruptive Discharge 
Pancake Coils, as first experimented with by Tesla in New York.

These style coils will undoubtably mark an epoch in the whole concept of 
Tesla Coil design.  As a bipolar arrangement, two small coils 2" high and 9" 
in diameter (Primary and Secondary Coils included) can produce a continuous 
16" spark when driven from a simple microwave oven transformer / mica 
condenser / series stationary spark gap arrangement.  A single 9" Pancake 
Coil can produce arcs 6-12" in length.

A smaller 4" coil can produce a 4-6" white arc of electricity so powerful as 
to disintegrate 1/8" tungsten rod -at- 400 watts being drawn from the mains.  
(This particular coil was demonstrated by Bill Wysock of Tesla Technology 
Research in Denver)

There is nothing complicated in these systems, and all use ca. 1890s 
materials, down to beeswax and rosin for insulation.  Tesla's original coil 
designs prove many inefficiency claims for Tesla Coils to be complete 
nonsense.

The difference between a helical or tube shaped secondary and a Pancake or 
Flat Spiral Secondary is the difference in a thin white spark to a hissing 
flaming discharge as thick as a man's wrist.

Many many photos can be seen at:
http://www.electrotherapymuseum-dot-com

Keep in mind that the most efficient Tesla Coils ever designed in the 1900s 
use this style of disruptive discharge coils.  This is quite a statement, 
considering that these coils were mainly manufactured in the first decade of 
the century, and such efficiency was never equalled even up to the end of 
the century - most people having forgotten the design by the 1920s, and it 
being unheard of in the 1990s!

Jeff Behary, c/o
The Turn Of The Century Electrotherapy Museum
http://www.electrotherapymuseum-dot-com



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