Re: grounded primary?

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

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