Re: first non NST coil questions

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Yurtle Turtle <yurtle_t@xxxxxxxxx>

Here's what happened when I tried to push around 20
kVA into my sucker gap:

http://www.hot-streamer.com/adam/gap_meltdown1.jpg

http://www.hot-streamer.com/adam/gap_meltdown2.jpg

It worked great for a while, but I kept cranking up
the power until I melted the PVC and the solder.

Adam

--- Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: "Barton B. Anderson"
> <bartb@xxxxxxxxxxxxxxxx>
>
> I think what Jared was referring to is the classic
> sucker gap
> configuration, not the fact that the sucker gap is a
> type of vacuum
> gap. Certainly, there are pressure and vacuum
> configurations that
> "could" be created for high power, but for the
> normal coiler building
> a sucker gap, he's correct. But like all technology,
> it's just a
> matter of someone doing what someone else didn't
> think of. Happens
> all the time on this list.
>
> Bart
>
> Tesla list wrote:
>
> >Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
> >
> >At 03:06 PM 3/24/2007, you wrote:
> >
> >>Original poster: "Jared Dwarshuis"
> <jdwarshuis@xxxxxxxxx>
> >>
> >>Original poster: Jim Lux
> <<mailto:jimlux@xxxxxxxxxxxxx>jimlux@xxxxxxxxxxxxx>
> >>
> >>
> >>
> >>
> >>Indeed.  The Marx blast gap has been used at tens
> of kW in both
> >>pressure and vacuum implementations.  It's all a
> matter of airflow
> >>and electrode design.
>
>>.............................................................................................
>
> >>
> >>
> >>Hi Jim:
> >>
> >>I did say "sucker gap", did I not?
> >
> >
> >Yep.. and Marx gaps have been implemented with the
> pressure
> >differential created on the suction side. All that
> matters is
> >highspeed gas flow through the electrodes. Not how
> I'd do it myself,
> >but that doesn't mean that someone hasn't
> successfully done it in
> >the past.  I would imagine that just about every
> kind of spark gap
> >one can imagine has been tried over the past 100
> years or so.  For
> >all I know, the high power suction gap was used to
> get around a
> >patent for a high powered pressurized gap.
> >
> >I've also seen them implemented with the plasma
> pulled through the
> >center of the electrode and those with the plasma
> blown out through
> >an annular gap.  The former is easy with a suction
> source, the
> >latter easier with pressure.
> >
> >One I built used a vacuum cleaner to provide the
> suction in a
> >triggered gap along the Marx design.  Granted, the
> motor died fairly
> >quickly, and it was noisy as all get out (not only
> was there gap
> >noise, but the scream of the vacuum cleaner motor
> contributed it's
> >share).   A nice quiet air compressor a long way
> away with a big
> >receiver was a much more pleasant experience.
> >
> >
> >>Closed systems, or open systems with gas bottles
> are not very
> >>practical, and really have nothing to do with
> "sucker" gaps!
> >
> >
> >No gas bottles required.. just a good blower, pump,
> or compressor,
> >and that's just a matter of mechanical stuff. It's
> remarkably easy
> >to get sonic flow with 30 psi pressure differential
> (look up a
> >handbook for "choked flow through an orifice").
> Heck, an ordinary
> >air nozzle on shop air will sometimes show Mach
> diamonds, especially
> >if the air is humid and there's no drier in the
> compressed air system.
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>




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