Re: frequency discussion

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi Matt,

The frequency of the coil is usually a byproduct of coil size. If frequency 
alone was considered, then lower frequency's would have lower losses. But, 
total losses (input to output) include far more causes than frequency 
alone. The gap is one of those areas where losses can be substantial. If 
one considers building a coil with a geometry that does not inhibit 
performance (too narrow, too long, etc.. etc..), a single layer coil, a 
wire size large enough to handle the power you throw at it, a primary 
geometry that will allow proper coupling to the secondary given the cap 
size used (and tied to cap energy for transfer), and a geometry that does 
not inhibit spark propagation (primary too close to top of coil, etc.), 
---- the losses with higher frequency's become "not so important", because 
so many other areas of the system have their own losses and limitations 
that exceed most concerns with frequency.

Bart

>  From: "Tesla list" <tesla-at-pupman-dot-com>
>  Date: Tue, 12 Nov 2002 17:42:30 -0700
>  Original poster: "Matt Morrissette by way of Terry Fritz 
> <twftesla-at-qwest-dot-net>"
>  <yinzara-at-MIT.EDU>
>
>  I m very curious what people s opinions are about frequency.  Is there a
>  frequency that is ideal to run a tesla coil at? If not is it better to have
>  a lower or a higher frequency? How does it effect spark length.