Re: 100 meter sparks (picture of GE machines!)

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: 100 meter sparks (picture of GE machines!)
From: Tesla List <tesla-at-stic-dot-net>
Date: Sat, 1 Nov 1997 00:46:04 -0600
Approved: tesla-at-stic-dot-net


From: 	DR.RESONANCE[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: 	Friday, October 31, 1997 11:05 AM
To: 	Tesla List
Subject: 	Re: 100 meter sparks  (picture of GE machines!)

to: Greg

Each HV supply was rectified to DC and DC was applied up the column thru
the charging resistors (value 10K).  The discharge was in series thru some
wave shaping resistors to give a lightning impulse 1.5-50 microsecond
waveshape.  I believe this machine was later used in their lab at
Pittsfield, Mass, for HV testing on insulation strings.

DR.RESONANCE-at-next-wave-dot-net


> From: 	Greg Leyh[SMTP:lod-at-pacbell-dot-net]
> Sent: 	Thursday, October 30, 1997 6:13 PM
> To: 	Tesla List
> Subject: 	Re: 100 meter sparks  (picture of GE machines!)
> 
> DR.RESONANCE wrote:
> 
> 
> > 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.
> 
> Thanks -- you answered my next question as well, which was how did they
> charge 
> the bank with AC if it was not a 120Hz unit?
> 
> 
> -GL
> 
>