Re: first post (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 15 Aug 2007 12:07:09 -0500
From: Terri Neeley <neeley_111@xxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: first post (fwd)


Exactly what Mr. Lux said.  Many people have used these transformers with
success and I thought it could be a cheaper alternative than stacking
nst's.  The transformers I have are 4500v 450ma btw.  So if you use Jim
Lux's config you essentially split the current between the two and double
the voltage.  I will be using a synchronous rotary gap.  My question is
are there really any alternatives to CD942's?  What about wima fkp1's? 
They seem to be much cheaper considering the cd's are over 3 bucks a
piece and I would need 6 strings of 18 of the .015mF for this coil.  I'm
just very new to this and I really just want a cap or mmc that will be as
reliable as reasonably expected to be.  Any really good alternatives
besides the CD's?  There gonna set me back at least 350$ for them.

Garry Neeley

________________________________________________________________________________

      From:  "Tesla list" <tesla@xxxxxxxxxx>
      To:  tesla@xxxxxxxxxx
      Subject:  Re: first post (fwd)
      Date:  Wed, 15 Aug 2007 10:23:54 -0600 (MDT)
      >
      >---------- Forwarded message ----------
      >Date: Wed, 15 Aug 2007 09:16:18 -0700
      >From: Jim Lux <jimlux@xxxxxxxxxxxxx>
      >To: Tesla list <tesla@xxxxxxxxxx>, tesla@xxxxxxxxxx
      >Subject: Re: first post (fwd)
      >
      >At 08:38 AM 8/15/2007, Tesla list wrote:
      >
      > >---------- Forwarded message ----------
      > >Date: Wed, 15 Aug 2007 08:29:08 -0700
      > >From: huil888 <huil888@xxxxxxxxxxxx>
      > >To: Tesla list <tesla@xxxxxxxxxx>
      > >Subject: Re: first post (fwd)
      > >
      > >Terri -
      > >
      > >First question is about your HV power supply transformers.
      These are
      > >nominally rated at 4500 volts RMS, 400ma. I assume that
      you intend to
      > >connect them in series to obtain 9KV RMS AC output?
      Peak-to-peak voltage
      > >will be about 12.7KV.  Are you sure that the transformer
      insulation will
      > >withstand this? One good flashover at this much current
      may destroy the
      > >transformers.
      > >
      > >How will you limit secondary the current to 225ma?
      >
      >I think that the plan is to cascade the two transformers in
      series,
      >using the 600V tertiary winding, so the "high" transformer's
      core is
      >floated at 4500V.
      >
      >These things have a fair amount of leakage inductance, so
      the output
      >current is limited.
      >
      >
      >
      >I built a similar cascade, using 4 transformers: two
      cascades, with a
      >center ground, and it's in many respects like a giant NST.
      >
      >
      >
      >


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