Re: Triggered Spark Gaps

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

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.
 >
 >
 >
 >
 >
 >
 >
 >