Re: Secondary Core.

• To: tesla-at-pupman-dot-com
• Subject: Re: Secondary Core.
• From: "Antonio Carlos M. de Queiroz" <acmq-at-compuland-dot-com.br> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Fri, 21 Apr 2000 12:10:41 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List wrote:
> 
> Original Poster: "Gavin Dingley" <gavin.dingley-at-astra.ukf-dot-net>

> the PVC plastic of the former would have more of an effect on the
> distributed capacity as it has a dielectric constant. So the
> self-resonant frequency (either modeled as a lumped LC circuit or as a
> transmission line <g>) would alter according to the dielectric constant
> of the coil form.

This effect is almost insignificant. The self-capacitance of the coil
comes from the electric fields around the coil, where the dielectric
is just plain air. What an improper material can do is to add losses
to the system.

Antonio Carlos M. de Queiroz

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