Re: Triggered Spark Gaps

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

Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net> 

Hmm.. Some real pioneers of triggered gaps like Edgerton and Fruengel both
used triggered gaps in high rep-rate applications (stroboscopes, and the
like).  I suspect that it's a matter of proper design for the application.
Perhaps the "stack of disks in Hydrogen" is the optimum design" or a
supersonic blast gap?

I agree that an EG&G sealed triggered gap probably wouldn't be
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, January 19, 2004 2:46 PM
Subject: Re: Triggered Spark Gaps


 > Original poster: dhmccauley-at-spacecatlighting-dot-com
 >
 > Triggered spark gaps typically have relatively short lifetimes, especially
 > as you start increasing peak current.
 > Probably not worth the effort or time to try using in a high-pulse
rep-rate
 > tesla coil.
 >
 > ALthough, they are great for triggering marx generators and similar.
 >
 > Dan
 >
 >
 >  > It's true that the 6500V-class IGBTs aren't cheap.  But a *triggered*
 >  > sparkgap with the required RMS current capacity, rep rate, and quench
time
 >  > is not likely to be a walk-in-the-park engineering effort, either...
which
 >  > isn't to say it couldn't be done though.  ^_^
 >  >
 >  >
 >  > -GL
 >  >
 >  >
 >  > >Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net>
 >  > >
 >  > > > Original poster: Greg Leyh <lod-at-pacbell-dot-net>
 >  > > >
 >  > > > Solid-state primary switching might be the best way to get the
timing
 >  > > > resolution you require for accurate 3-phase RF control.  I'll have
a
 >  > >better
 >  > > > idea within a few weeks what degree of control such a 'phasing'
knob
 > has
 >  > >on
 >  > > > the output arcs of a twin coil.  The phasing control for the ALF
 > prototype
 >  > > > will have a resolution of about 200nS, on a 16uS period Fo.
 >  > > >
 >  > > > -GL
 >  > > >
 >  > >
 >  > >But... I haven't seen many (inexpensive) solid state primary switches
 > that
 >  > >can take the kilovolts at kiloamps kind of thing that a spark gap does
so
 >  > >nicely.  However, maybe triggered spark gaps might be the ticket.
 >  >
 >  >
 >  >
 >  >
 >  >
 >  >
 >  >
 >  >
 >
 >