Re: Brass that isn't brass

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

Original poster: "Dukester by way of Terry Fritz <twftesla-at-uswest-dot-net>" <dukester-at-home-dot-com>

Pete,
If you want a good safety gap, cut yourself three pieces of 1" copper pipe
one inch long. Mount them on insulators side by side so they are at 90
degrees to each other. The center one mounted vertically connected to
ground, and the two others on each side mounted horizontally connected to
each side of your NST. The two outside ones should have some kind of
adjustment screw to set the gap on each side.  You will have a 1" round set
of gaps of copper that is self centering.

O II O  < Diagram

Keep on coilin'

Sparky

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, May 08, 2001 9:54 PM
Subject: Brass that isn't brass


> Original poster: "Pete Komen by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<pkomen-at-zianet-dot-com>
>
> I discovered that the "brass" knobs that I used in my spark gap are brass
> coated zinc(?).  Under the yellow colored brass skin is a silvery
> non-magnetic metal.
>
> I just got some 1/4 inch "brass" acorn nuts.  Imagine my surprise when I
> discovered that these "brass" nuts are magnetic.
>
> I thought that acorn nuts would be solid brass, but no.  Same for the
knobs,
> but I guess "brass" means the finish and nothing else.
>
> I hate not trusting these stores (the store may be a victim) but I think
> I'll subject "brass" to the magnet test and the file test before I buy
more
> than one of any item.
>
> Caveat emptor.
>
> Cheers,
>
> Pete
>
>
>