Re: Marx Generator (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 19 Jul 2007 13:40:47 -0300
From: Antonio Carlos M. de Queiroz <acmdq@xxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Marx Generator (fwd)

Tesla list wrote:
> ---------- Forwarded message ----------
> Date: Thu, 19 Jul 2007 05:29:27 -0400
> From: Dave Pierson <davep@xxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: Marx Generator (fwd)
>   
>         Marx
>     Its the originator's name.
>   
>     I would regard them as Marx Generators and Tesla systems as different.
>     A Marx generator does not use the 'transformer' effect, nor have any
>     resonance in its design.
>
>     One could, sort of, regard the LV end of a 'spark gap' Tesla Coil as
>     a single stage, non voltage increasing, Marx, but thats a bit thin.
>
>     If memory serves, Tesla coils are historically the older, by about
>     10 years.
>     
>     
The idea of charging capacitors in parallel and discharging them in 
series is old. A curious implementation was the
"rheostatic machine", invented by Gaston Planté, and described in a book 
in 1883.
http://www.coe.ufrj.br/~acmq/lef595.jpg
An insulating cylinder with two sets of contacts was used to connect a 
bank of capacitors in parallel with a high-voltage
battery or in series with a spark gap, as the crank was turned.
The book was "Recherches sur l'Électricité : de 1859 à 1879," 
Gauthier-Villars, 1883.
It is available at http://gallica.bnf.fr.

Antonio Carlos M. de Queiroz