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Re: Large Transformer Question (fwd)



---------- Forwarded message ----------
Date: Sat, 14 Feb 1998 08:15:07 -0800
From: Joshua Resnick <seraphim-at-WPI.EDU>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Large Transformer Question (fwd)

Tesla List wrote:

> ---------- Forwarded message ----------
> Date: Fri, 13 Feb 1998 10:58:34 -0700
> From: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net>
> To: Tesla List <tesla-at-pupman-dot-com>
> Subject: Re: Large Transformer Question (fwd)
>
> to: Jeff
>
> The reactance does depend on the operating potential as well as the
> current
> for the correct match.  A value of .005 MFD is required for every 30
> ma of
> drive current available at 10-12 kV.  The .01 MFD value would be too
> high
> for 30 ma drive with most NST's.
>
> DR.RESONANCE-at-next-wave-dot-net
>
> ----------
> > From: Tesla List <tesla-at-pupman-dot-com>
> > To: tesla-at-pupman-dot-com
> > Subject: Re: Large Transformer Question (fwd)
> > Date: Thursday, February 12, 1998 10:21 PM
> >
> >
> >
> > ---------- Forwarded message ----------
> > Date: Wed, 11 Feb 1998 21:46:34 -0600
> > From: Jeff Corr <corr-at-enid-dot-com>
> > To: Tesla List <tesla-at-pupman-dot-com>
> > Subject: Re: Large Transformer Question
> >
> > >Last question - I cut some microwave xfrms apart in a band saw and
> > >removed the secondaries. I measured them out around 350 mH, an
> > >acceptable Tesla-Coil choke.  Have people used them before? What
> current
> > >/ voltage limitations do they have?
> >
> > I don't know about the other stuff, but the secondaries are rated at
> half
> > an amp, which is more than you will ever need for a choke.  It
> should
> > work great.
> >
> > I think your cap value of .01uf is too high...  What is the current
> output
> > of your transformers?  The typical range of cap value should be
> .01uf
> > for every 30ma of current.
> >
> > Jeff Corr   |   corr-at-mail.enid-dot-com   |   580-234-6749
> > http://www.harvestcomm-dot-net/personal/corr/index.htm
> > ICQ UIN # 1303360 | Nick TacoBell

  I have two 5kv-at- 300ma in series.  I said in my first question that my
cap was .1uf  (not .01) which is what it measures up to be. This is the
same size cap that Fr.Tom used with his H&R trannies which fits the
general rule of .01uf for every 30ma.

--
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