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Re: 100 meter sparks (picture of GE machines!)
From: DR.RESONANCE[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Thursday, October 30, 1997 10:19 PM
To: Tesla List
Subject: Re: 100 meter sparks (picture of GE machines!)
To: Greg
It was a Marx generator. The chief clue here is there is a spark discharge
seen at each stage in the photo --- a Cockroft-Walton uses diodes not spark
gaps as the switching device hence no spark gap at each stage. Also note
the sphere gaps on each stage -- again indicating Marx generator. A large
tube type rectifier power supply charged each stage --- 1 power supply for
each generator and total of +5 MEV and -5MEV on other unit.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-poodle.pupman-dot-com>
> Subject: Re: 100 meter sparks (picture of GE machines!)
> Date: Thursday,October 30,1997 6:05 PM
>
>
> From: Greg Leyh[SMTP:lod-at-pacbell-dot-net]
> Sent: Thursday, October 30, 1997 4:21 AM
> To: Tesla List
> Subject: Re: 100 meter sparks (picture of GE machines!)
>
> Jim Lux wrote:
>
> > > Wow, cool pics!! Looks like a Colcroft-Walton arrangement, but...
> > > what would they have used for rectifiers? Cold cathode tubes?
> > > Do you have any specs or info as to the theory of operation?
> > > -GL
> >
> > I am going to guess that it was two Marx banks. 5 MV with 250 kV/stage
> > would be 20 stages. The diagonal braces are probably the charging/feed
> > forward resistors, the caps are in the round towers.
>
> At first I thought it was a Marx bank as well, but the staggered height
> of the cylinders would seem to suggest otherwise. The absence of the
> obligatory series Marx bank spark gaps is yet another clue.
> Could it be a 120Hz rep rate Marx bank, with the gaps inside the
> cylinders?
>
>
> -GL
>
>