Re: Secondary Constructio
Subject: Re: Secondary Constructio
From: Stan Harle <lazer-at-netcom-dot-com>
Date: Thu, 5 Oct 1995 20:27:11 -0700 (PDT)
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> I have found that the sparks tend to travel along a solid surface
> easier than through the air. For some reason they will break down
> across the solid inside surface more readily than along the coil
> itself. Maybe with continued use the discharges lower the
> breakover voltage of the PVC surface. I know that after operation
> where theres a corona the plastic becomes marked with micro
> tracks. All the coils I've made have had uncapped ends also.
This also could explain what you're seeing, coupled with whatever
is happening in the center of the secondary. I had a go at explaining it.
Check the other message that I put out on this and see what you think.