Re: strap primaries

["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, i used 1/8 by 1/4 inch copper strap to make the primary on the #3 tesla
and it has worked just fine. I have some 1/8 by 1/2 copper strap from diesel
starter windings and will use that for my next coil. Many of the old "fair
Tesla's" that i have seen pictures of quite often used brass strap for a
primary. cul brian f.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, March 01, 2002 10:08 AM
Subject: strap primaries


> Original poster: "Mr Gregory Peters by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>
>
> Hey guys, A question about primaries.
>
> I once read that copper strap has better RF conductive properties than
> copper tube, but we use tube in tesla primaries to suppress corona
> loss. My question is why? If you have, say, a peak primary voltage of
> 40kV and a 10 turn primary, don't you technically only have 4kV/turn?
> Isn't 4kV too low a voltage for corona discharge to really be a
> problem? I would rather use strap as it is much easier to bend then
> tube.
>
> Cheers,
>
> Greg Peters
> Department of Earth Sciences,
> University of Queensland, Australia
> Phone: 0402 841 677
> http://www.geocities-dot-com/gregjpeters
>
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