Re: grounded primary?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Brian by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ka1bbg-at-webryders-dot-net>

Hi, what childrens museum? Boston? if so the coil was made by a guy from
Laconia, N.H. Harold strand?? i forgot! cul brian f.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, May 12, 2002 1:51 PM
Subject: Re: grounded primary?


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Beans45601-at-aol-dot-com>
>
> The sparks are about 2". I don't know anything about the coil except that
the
> transformer appears to be 8-10Kv. I can's get access to the caps. It is a
> roadery spark gap. It appears to be made by someone who knew what they
were
> doing.
> Thanks
> Adam
>
>
> >
> > Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
> >
> > Hi Adam,
> >
> > What kind of NST is it?  Could you give more detail on the coil?
> >
> > I can think of some situations where this may be "right" but no two
Tesla
> > coils
> > seemed to be built the same way.  So, we have to consider the whole
story in
> > how this "one" is constructed.
> >
> > You say the coil is "poor" but how does it relate to John's formula of
spark
> > length in inches:
> >
> > L = 1.7 x SQRT (input power)
> >
> > Cheers,
> >
> >         Terry
> >
> >
> > At 12:00 AM 5/12/2002 -0400, you wrote:
> > >
> > > I was looking at the TC at the children's museum that I work at and I
> > noticed
> > > that the primary coil was grounded to the NST case. I have never seen
(or
> > > herd of) this done before. Is this the reason that the coil is getting
such
> > > poor performance?
> > > Thanks
> > > Adam
> >
>
>
>
>
>
>