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Re: first post (fwd)
---------- Forwarded message ----------
Date: Wed, 15 Aug 2007 14:52:06 -0500
From: Terri Neeley <neeley_111@xxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: first post (fwd)
It was a mistake. Sorry. Ok so 3 strings of 8 of the .15microF would be
fine then. Thx for all the input. Thx for filling me in on the rf
current thing Jim. I'll do some research on that.
Garry Neeley
________________________________________________________________________________
From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: first post (fwd)
Date: Wed, 15 Aug 2007 12:40:53 -0600 (MDT)
>
>---------- Forwarded message ----------
>Date: Wed, 15 Aug 2007 13:42:55 -0500
>From: Terri Neeley <neeley_111@xxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: first post (fwd)
>
>
>I don't know what I was thinking. I need .066microF so 3
strings of 7
>would work out fine right?
>
>Garry Neeley
>
>______________________________________________________________________________
_
>
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: Re: first post (fwd)
> Date: Wed, 15 Aug 2007 11:59:45 -0600 (MDT)
> >
> >---------- Forwarded message ----------
> >Date: Wed, 15 Aug 2007 13:00:10 -0500
> >From: Crispy <crispy@xxxxxxxxxxx>
> >To: Tesla list <tesla@xxxxxxxxxx>
> >Subject: Re: first post (fwd)
> >
> >Hmm, by my calculations, you'd only need 7 per
string. The
> caps are
> >rated at 150nF, 2kV each, if I recall. 9000Vrms is
about
> 12730V peak.
> >Divided by 2000V per cap and rounded up comes to 7
caps per
> string.
> >This alone is more than the 15nF you want. If you
want
> exactly 15nF,
> >you can use one string of 10, and have a healthy
voltage
> margin as well.
> >On ebay, the ebay store TeslaStuff sells lots of 12
of these
> caps for
> >under $50.
> >
> >Hope this helps,
> >Chris
> >
> >On Wed, 2007-08-15 at 11:05 -0600, Tesla list wrote:
> > > ---------- Forwarded message ----------
> > > Date: Wed, 15 Aug 2007 12:07:09 -0500
> > > From: Terri Neeley <neeley_111@xxxxxxx>
> > > To: tesla@xxxxxxxxxx
> > > Subject: Re: first post (fwd)
> > >
> > >
> > > Exactly what Mr. Lux said. Many people have used
these
> transformers with
> > > success and I thought it could be a cheaper
alternative
> than stacking
> > > nst's. The transformers I have are 4500v 450ma
btw. So
> if you use Jim
> > > Lux's config you essentially split the current
between
> the two and double
> > > the voltage. I will be using a synchronous
rotary
> gap. My question is
> > > are there really any alternatives to
CD942's? What about
> wima fkp1's?
> > > They seem to be much cheaper considering the cd's
are
> over 3 bucks a
> > > piece and I would need 6 strings of 18 of the
.015mF for
> this coil. I'm
> > > just very new to this and I really just want a
cap or mmc
> that will be as
> > > reliable as reasonably expected to be. Any
really good
> alternatives
> > > besides the CD's? There gonna set me back at
least 350$
> 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.
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> >>______________________________________________________________________________
>
> > >
> > > More photos, more messages, more storageget 2GB
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> > >
> >
> >
> >
>
>
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