Re: Brass Corona Rings

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

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

bronze and brass are two different mixtures,
don't mix them up.
forget about pipe benders,
any engineering shop worth its salt can roll tight pipes,
if your looking at brass with a high yellow\white appearance
then your going to be in trouble because of the high zinc to
copper concentration making the brass less subject to softening
and more subject to cracking. a more red type of brass with
  increased copper content or even better
a bronze like leaded gunmetal has a more red appearance but still
polishes up beautifully, and 'works' far more easily.
i for one on my 4" coil intend to use steel exhaust donuts for toroids
and corona rings and having them gold plated.

regards
richard
aus


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, March 03, 2004 1:26 AM
Subject: Re: Brass Corona Rings


 > Original poster: "Willem Bosma" <wbosma-at-stud.tue.nl>
 >
 > Gerry,
 > Hard drawn brass tube has high internal stresses which can be relieved by
 > heating in an oven for an hour at a temperature of about 300 degrees
 > centigrade under protective gas. Quenching with oil or water will barily
 > help softening because of its bronze nature. Plumbers have bending
aparatus
 > for pipes, but I don't know to what diameter.
 > Wish you luck,   Willem
 >
 > ----- Original Message -----
 > Snip
 >  >
 > Snip
 >  >
 >  > >I'm looking to make a corona ring for my big 8x36 coil and I think it
 >  > >would look cool if it were made out of brass.  Is there such a thing
as
 >  > >soft brass tubing like the copper tubing that we use?  I'm thinking
3/4
 > or
 >  > >1 inch diameter (minor) and making the ring 11 or 12 inches in
diameter
 >  > >(major).
 >  > >
 >  > >Gerry R
 >
 >
 >