RE: Toriod ? Bendaway_Plus, stainless, titanium stabilized, low iron, smaller diameter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Excellent point. A cusery google rates 316 stainless at composition <paste>
Fe, <0.03% C, 16-18.5% Cr, 10-14% Ni, 2-3% Mo, <2% Mn, <1% Si, <0.045% P,
<0.03% S

-Low iron anyway. I think I would reduce to 8 or 10 inch minor diameter, it
is expensive! How smooth is the outside? They are 100 mi from me. I think
I'll call and get bend radius' for different diameters. I'm more interested
in the umbrage (shielding) then the slight increase in capacitance.

Anyone know the effects of low fe stainless at 60+ KHZ ?

Thanks,
Jim Mora

----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Monday, September 04, 2006 2:26 PM
To: tesla@xxxxxxxxxx
Subject: RE: Toriod ? Bendaway_Plus, stainless, titanium stabilized

Original poster: "" <tesla@xxxxxxxxxxxxxx>

I can't help but address the issue of steel for a toroid.  You want
aluminum,
copper or perhaps brass.  I've made exceptional toroids from 6' lengths of
al
ducting from Home Depot with a 1/8" al circular piece in the middle attached
with al tape - cost was under $75.00 and that device has kept intact for
over 5
years.  The best, of course, is a smooth toroid from, oh, say, O.W.
Landergren
who has been making toroids since 1927 and have that process down to a rote
procedure.

Cheers,

John Cooper
www.Tesla-Coil.com
www.Tesla-Coil.org
www.FrankensteinsLab.com







Quoting Tesla list <tesla@xxxxxxxxxx>:

 > Original poster: "Rich & DJ" <rdj@xxxxxxxxxxxx>
 >
 > If you want to use 12" dia the smallest circle you can form with it is
 > 86" on the outside, 37" bend radius, weight 1.83 per ft, cost about $800
 > a section then there is shipping. It is great, we used it in duct work
 > for our clean room and vents for diffusion pumps because of the
 > hydrofluoric acid fumes.
 > Rich from the middle of Missouri
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla@xxxxxxxxxx]
 > Sent: Monday, September 04, 2006 12:40 AM
 > To: tesla@xxxxxxxxxx
 > Subject: Toriod ? Bendaway_Plus, stainless, titanium stabilized
 >
 > Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>
 >
 > Hi,
 >
 > Has oneone looked into this product before? It claims resilance and
 > looks it
 > to have it in spades. No bends or dent likely on this excepting extended
 > drop tests maybe.
 >
 > It looks to be somewhat smooth too. Coat with alum tape?
 >
 > I'm wanting to build a 54"x12" toriod. Maybe we can get a sample piece?
 > I
 > wonder what the wieght is per foot?
 >
 > Jim Mora
 >
 > The message is ready to be sent with the following file or link
 > attachments:
 >
 > Shortcut to: http://www.ducting.com/Bendaway_Plus.html
 >
 >