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Re: Thyratron pair (was DC Drive)
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To: tesla@pupman.com
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Subject: Re: Thyratron pair (was DC Drive)
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From: Tesla List <mod1@pupman.com>
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Date: Mon, 13 Oct 1997 16:11:01 -0600 (MDT)
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Approved: mod1@poodle.pupman.com
---------- Forwarded message ----------
Date: Tue, 14 Oct 1997 09:46:34 +1200
From: Malcolm Watts <MALCOLM@directorate.wnp.ac.nz>
To: tesla@pupman.com
Subject: Re: Thyratron pair (was DC Drive)
Hello Richard,
> From: Richard Wayne Wall <rwall@ix.netcom.com>
> To: Tesla List <tesla@pupman.com>
> Subject: Re: Thyratron pair (was DC Drive)
>
> Malcolm wrote:
>
> snip
>
> >> Think about Dr. R's version of the extra coil where he has
> >> eliminated the driver secondary altogether and drives the extra coil
> >> from the >> primary alone. The reason this works is that there is
> >> fast rise time and the the required extra coil wave content is
> >> available. RWW
> >>
> >> As we become more familiar with these driving techniques, we will
> >> eventually be able to elminate the primary/secondary driver
> >> altogether and directly drive the resonator electronically. RWW
> >
> >I should point out that this is essentially CW drive and that this
> >has all been done before. Duane Bylund published a CW fed mag
> >some time ago using a 1/2 bridge driver. The real trick would be to
> >get power disruptively into a single resonator. I don't think it can
> >be done without using at least one other coil but I could be wrong.
> >I would regard a tap on the resonator as equivalent to using a second
> >coil.
> >
> >Malcolm
>
> Malcolm,
>
> I specified in my post that the driver is not continuous wave, but fast
> rising pulses with information content (read harmonics) and relatively
> long periods of quiessence between pulses. The vacuum tubes or IGBTs
> are driven electronically and not by feed back from the resonator.
The pulse can only rise as fast as the LpCp surge impedance can allow
it to can't it?
Malcolm
<snip>