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RE: [TCML] Spark gaps, Solid state switches and diodes
Hello everyone,
I see the word 'disruptive' pertaining more to the spark gap than the condenser. The spark gap would be the disruptive part of the coil, seeing as, without it, the capacitor wouldn't reach its full potential. We could go either way with this, because, without the capacitor, the spark gap would be useless and, without the spark gap, the capacitor would be next-to-useless. I've never tried running a coil with no spark gap versus no spark gap and no cap, so I can't say whether or not the cap would have much effect.
My point is that disruptive just means pulsed. If it weren't for the capacitor, it wouldn't be pulsed and, without the spark gap, efficiencies we've realized could not be obtained.
As always, I look forward to hearing what you all think,
Christopher
> Date: Sat, 7 Feb 2009 19:32:16 -0700
> Subject: Re: [TCML] Spark gaps, Solid state switches and diodes
> From: resonance@xxxxxxxxxxxx
> To: tesla@xxxxxxxxxx
> CC:
>
> I think the disruptive part refers to the primary side of the coil, ie, it
> has a spark gap. A condensor discharge thru a spark gap is irregular in
> nature as opposed to an alternator that
> makes a near perfect smooth sinusoidal wave form. Tesla realized a
> discharging condensor would allow him to use higher potentials and achieve
> greater multiplication factor thru his
> newly developed air core cores. His first experiments were strictly with
> high frequency alternators, and he then switched to capacitor - sparkgap
> type systems for this reason.
>
> A solid state coil, with it's precision controlled switching would not be
> "disruptive" whereas an open spark type like Tesla used would be considered
> "disruptive". Lord Kelvin originally described the
> spark discharge from a condensor as "disruptive".
>
> Just my take on this.
>
> Dr. Resonance
>
>
>
>
> On Sat, Feb 7, 2009 at 5:43 PM, Gary Peterson <g.peterson@xxxxxxxxxxxx>wrote:
>
> > > I think we need to air some definitions . . . , what's your definition of
> > "disruptive" as it applies to Tesla Coils?
> >
> > In order to accurately define the word "disruptive" as it applies to Tesla
> > coils we first have to see how Tesla himself uses the word. Here are some
> > examples found in his lecture "Experiments with Alternate Currents of High
> > Potential and High Frequency," IEE Address, London, February 1892 (
> > http://www.tfcbooks.com/tesla/1892-02-03.htm ).
> >
> > ". . . In the experiments such as performed this evening, we operate the
> > coil either from a specially constructed alternator capable of giving many
> > thousands of reversals of current per second, or, by DISRUPTIVELY
> > discharging a condenser through the primary, we set up a vibration in the
> > secondary circuit of a frequency of many hundred thousand or millions per
> > second, if we so desire; and in using either of these means we enter a
> > field
> > as yet unexplored. . . ."
> >
> > ". . . Before showing some of these curious effects I must, for the sake of
> > completeness, give a short description of the coil and other apparatus used
> > in the experiments with the DISRUPTIVE DISCHARGE this evening. . . ."
> >
> > My definition of the adjective "disruptive," within the context of Tesla
> > coil technology, relates to the transitive verb "disrupt." The word
> > "disrupt" is the act of breaking down an insulating medium or dielectric
> > separating two conducting bodies, by means of an electrical discharge. In
> > Tesla coil jargon the adjective form of the word is often found as part of
> > the term "disruptive discharge," as in "disruptive discharge Tesla coil"
> > (see for example
> > http://www.tfcbooks.com/images/lectures/1892-02-03/005.gif
> > ).
> >
> > Look at this image:
> > http://www.tfcbooks.com/images/lectures/1892-02-03/017.gif , for an
> > example
> > of a disruptive discharge Tesla coil transformer being used to power an
> > electric motor. Notice that there are no sparks breaking out from the high
> > voltage terminal.
> >
> > > Hmm, sounds like another disciple . . .
> >
> > If you meant to say, 'it looks like this guy is researching Tesla's
> > wireless
> > telecommunications system,' then you're correct.
> >
> > > . . . of the Corums. . . .
> >
> > I feel honored and privileged to have Dr. James Corum as a friend and
> > mentor.
> >
> > G.P.
> >
> > "Radio and TV are not audiovisual aids for increasing or promoting the
> > former ways of experience. They are the new languages. Firstly, we must
> > learn and then we must teach these new languages in all their subtle
> > details
> > and abundances." - Marshall McLuhan
> >
> >
> > From: tesla-bounces@xxxxxxxxxx On Behalf Of FIFTYGUY@xxxxxxx
> >
> > g.peterson@xxxxxxxxxxxx writes:
> > >Correct, the objective is to create undamped or partially damped
> > >oscillations in the helical resonator.
> >
> > Hmm, sounds like another disciple of the Corums... :P
> >
> > >> . . . SISG-driven coils are by definition, disruptive.
> > >
> > >The term "disruptive discharge Tesla coil" derives from the specific
> > >type of circuit controller or switch, colloquially known as the "spark
> > >gap," located in the primary circuit. The fact is, neither
> > >solid-state nor vacuum tube Tesla coils, nor those driven by modified
> > >RF alternators are disruptive discharge Tesla coils, sparks or no sparks.
> >
> > I think we need to air some definitions so everybody's on the same
> > page.
> > Mr. Peterson, what's your definition of "disruptive" as it applies to
> > Tesla Coils?
> >
> > -Phil LaBudde
> >
> >
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> >
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