RE: Big Toroids, collective conscious brain storm

["Tesla list" <tesla@xxxxxxxxxx>]

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

D.C. el al,

Sounds great. What are the implications of having the spacing horizontal
rather that vertical? This would take a lot of copper tubing. Say a 60"
toriod center would be 188 feet long. Aluminum tubing would likely be
cheaper and lighter. What about using ldpe or hdpe 12" disks? Sure would
look cool.

Jim Mora

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Wednesday, September 13, 2006 11:17 AM
To: tesla@xxxxxxxxxx
Subject: Re: Big Toroids, collective conscious brain storm

Original poster: "resonance" <resonance@xxxxxxxxxxxx>


Idea on large toroid construction for Tesla transformers:

Another method that would work well would be a copper tubing
toroid.  Using 1/2 inch ID (5/8 inch OD) copper tubing on a 5/8 inch
spacing.  Each ring would be a slightly different size progressing
smaller in size from the equator both up and down.  A simple frame of
hemisphere slotted 1/4 inch plywood would form the center supports in
each quadrant.  Notches would be slotted (hemisphere) in the edge of
the plywood to hold the copper tubing rings.  A single copper wire
would be soldered across all the copper tubing rings on the inside
edge --- this connects them all together to achieve equipotential on all
rings.

The hemispheres (notches) are actually drilled out to full size on
the larger plywood structure.  Then the outer edge of the structure
is sawed off leaving a hemisphere "notch" that the copper tubing snaps into.

The rings are soldered together using common plumbing copper tubing joiners.

The plywood parts would be sprayed with conductive paint to help make
the entire structure more conductive and electrically equipotential.

This technique would be very cost effective.  Once the pattern is
developed is could be made full size on cardboard and easily
transferred to 1/4 inch plywood.  For smaller toroids Russian 1/4
inch birch plywood used as flooring underlayment is available at most
local lumber yards.  This material is very light in weight.  Larger
toroids would use 1/2 inch thick plywood.

I first saw this copper tubing toroid in operation in 1961 at the
"Lightning Laboratory" in Minneapolis where they were testing
lightning discharges against missle cases.  It works well as long as
the spacing between the rings is small.  The lightning lab was
running a large 80 x 24 inch copper tubing toroid at 1.5 MEV.  This
same technique would work the same on almost any size toroid such as
24 x 6 inch and up.

This would be a smaller scale version of the large sphere that Greg
Leyh has used on his large coil.

If time permits I would be interested in doing the development work
when I get to Tucson in mid-Oct.

Scott H. --- this would work well for the coil you are presently working on.


Dr. Resonance