RE: Early versions of Tesla's coil

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

Original poster: "John H. Couture by way of Terry Fritz <teslalist-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>


Terry -

Thank you for the photos of the Leak Detector test. The waveform output is
that of a Tesla coil alright. Do you have a wiring diagram of this device?
It would be interesting to see what the inductance coil circuit looks like.

John Couture

----------------------------------------



-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Monday, July 07, 2003 9:47 PM
To: tesla-at-pupman-dot-com
Subject: RE: Early versions of Tesla's coil


Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Hi,

At 08:43 PM 7/7/2003 -0400, you wrote:

 >RMC -
 >
 >It is a simple matter to test weather the device is a Tesla coil or an
 >induction coil. The Tesla coil uses dampened waves and the induction coil
 >uses pulses. All you need is a scope. If you have a Leak Detector that
works
 >you may want to make this test.
 >
 >John Couture

I set the Electro-Technic Products Inc. BD-10A leak tester up about 5 feet
from a plane antenna:

http://hot-streamer-dot-com/temp/030707-05.jpg

Note the newly cleaned up lab.  I spent the last two days cleaning it so I
could see the pretty carpet again ;-))

The leak tester puts out many breaks during each peak in the AC cycle:

http://hot-streamer-dot-com/temp/030707-01.gif

A close up of these bursts shows a classic but very dense series of Tesla
coil like breaks:

http://hot-streamer-dot-com/temp/030707-02.gif

http://hot-streamer-dot-com/temp/030707-03.gif

The resonant frequency is about 340kHz:

http://hot-streamer-dot-com/temp/030707-04.gif

So it IS a Tesla coil with a relatively small, very fast charging, primary
cap that can fire many times during a peak in the AC.

Cheers,

          Terry