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re: tesla: Brass that isn't brass
Original poster: "Charles Hobson by way of Terry Fritz <twftesla-at-uswest-dot-net>" <charles.a.hobson-at-btinternet-dot-com>
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
Sent: Thursday, May 10, 2001 12:50 PM
Subject: Re: Brass that isn't brass
One way of mounting that excellent safety gap described by Sparky can be
seen on www.charles.a.hobson.btinternet.co.uk/images/multigap.gif
> Original poster: "Dukester by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> 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
> of gaps of copper that is self centering.
> O II O < Diagram
> Keep on coilin'
> ----- 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
> > I discovered that the "brass" knobs that I used in my spark gap are
> > 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
> > 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
> > than one of any item.
> > Caveat emptor.
> > Cheers,
> > Pete