Re: Piffard Hyperstatic Transformer - Static Electric powered Tesla Coil (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 07 Aug 2007 20:56:07 -0300
From: Antonio Carlos M. de Queiroz <acmdq@xxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Piffard Hyperstatic Transformer - Static Electric powered Tesla
    Coil (fwd)

Tesla list wrote:
> ---------- Forwarded message ----------
> Date: Tue, 07 Aug 2007 21:20:05 +0000
> From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
>
> Regardless of the medical use of the machines, the construction and 
> operation of them is neat.
> So to keep this post on topic, has anyone else ever seen plans or mention of 
> another Tesla Coil operated from a static or influence machine in particular 
> (as opposed to an induction coil or transformer, etc).  Its not exactly the 
> first experiment that comes to mind if you own one, but I guess if you have 
> a large Wimshurst Machine it would be a neat addition to go with your 
> Franklin Bells and Ion Motor...
>   
I tried this:
http://www.coe.ufrj.br/~acmq/tesla/mres4ele.jpg
In the test setup, a triplex Wimshurst machine was used, with the 
machine output taken between one terminal and the grounded neutralizer 
circuit. The machine can easily produce 50 ľA in this condition, what is 
enough to charge the 1 nF primary capacitor to 10000 V 5 times per 
second . Each spark at the gap produces a corona burst at the terminal 
antenna, or sparks with a few cm of length to a nearby object. With so 
small input power (250 mW), the output is barely visible, but is clearly 
audible. For this kind of operation, it would be more efficient to use 
the high voltage capability of the electrostatic machine to charge a 
smaller input capacitor to higher voltage. Assuming a constant charging 
current I, the average input power is found as P=VI/2, where V is the 
gap voltage.With C1=100 pF charged to 50 kV by 50 ľA, and operation in 
mode 3-4 (L1 = 2.4 mH and voltage gain of 3.6), the machine could charge 
the capacitor 10 times per second, the input power would climb to 1.25 W 
and the output voltage could go to 350 kV, with a proper terminal.

Antonio Carlos M. de Queiroz