Re: Static Spark Gap

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

Original poster: "marc metlicka by way of Terry Fritz <teslalist-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>

One option is to use a sync triggered spark gap to fire the gap at peak
voltage.
  these are easily made and outlined at:
http://members.fortunecity-dot-com/marcmet/id36.htm
Marc

Tesla list wrote:
 >
 > Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" 
<FutureT-at-aol-dot-com>
 >
 > In a message dated 4/24/03 4:35:24 PM Eastern Daylight Time,
 > tesla-at-pupman-dot-com writes:
 >
 > Gregory,
 >
 > The gap could fire multiple times per presentation but such operation
 > causes inefficient operation and draws heavy current.  Peter (Robert?)
 > Jameson wrote about this in a paper he presented some time ago.
 >
 > It's partially for this reason that coils often run very poorly when the 
rotary
 > is slowed down too much.  The dwell time should not be too long.
 >
 > The rotary limits the break rate if the rotary and the TC system are
 > working as they should.  However, the break rate of an async rotary is
 > usually lower than the presentation rate because presentations
 > near the zero crossing may not fire.
 >
 > John
 >
 > >Original poster: "Gregory Hunter by way of Terry Fritz
 > ><teslalist-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>
 > >
 > >I've been following this thread, and something one of
 > >the posters said is bugging me. Somebody mentioned
 > >that the only way to get control over break rate is to
 > >go to with a rotary. Am I to assume then, that an RSG
 > >only fires ONCE on each presentation of the
 > >electrodes? I think this is only true for a LTR system
 > >using a SRSG. What about the case of a pole xfmer, PT,
 > >or MOT bank feeding a smaller-than-resonant cap?
 > >Compared to the speed of one fire/quench cycle, the
 > >flying electrodes are really crawling along. In a good
 > >quenching system (like a sucker gap in series with the
 > >RSG) with sufficiently stiff charging current, we
 > >could have multiple firings per electrode
 > >presentation. Now the true break rate is an unknown
 > >again, unless one has proper test equipment! Just
 > >using an RSG doesn't really nail down the break rate,
 > >does it? The thing could be firing in burst mode every
 > >time the electrodes line up.
 > >
 > >Cheers,
 > >
 > >
 > >=====
 > >Gregory R. Hunter
 > >
 > >http://hot-streamer-dot-com/greg
 > >