RE: New Files at www.teslacoil-dot-com

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

Original poster: "Jeff W. Parisse by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jparisse-at-teslacoil-dot-com>

Terry & All,

The poles were set 10' away from the coil and were 45 degrees apart so
your guess was pretty much right on the money. The discharge points were
also set 45 degrees apart to match the poles. The video camera was off
to one side because the still camera was set dead center (see the .jpg).
I don't recall the exact number of turns but generally we use about half
the number of turns of smaller (<8kVA) coils (NST, MOT, OBIT, PT). Same
with wire; less resistance is better so we go for "bigger", however, the
same doesn't (may not) hold true for smaller coils.

I believe that there is a physical leap at 10kVA... That is, many of the
"rules of thumb" change dramatically at or near that power level and
many design factors (overall system Q, RF grounding needs, insulation
factor, coupling, tuning, etc...) "change" in a non-linear way (i.e.
things stop scaling up like one expects them to). This is just a
personal observation I have "noted" in the last six or seven years.
Maybe others who have make the 10kVA transition can comment?...

Jeff



-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Sunday, November 03, 2002 10:21 AM
To: tesla-at-pupman-dot-com
Subject: Re: New Files at www.teslacoil-dot-com


Original poster: "Terry Blake by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <tb3-at-att-dot-net>

That is some awesome teslacoil action.  Now I need a 48x12 toroid. What
is the secondary wire gauge and number of turns?  Is it 60" high (1:3)?

It looks like about 2.5 toroid widths to the poles in the photo.  That
would be about 10 feet.  But since the poles are going at an angle (one
close to the camera and one far), I guess that the distance is bit over
12 feet.  Is that what you figure Jeff?

Terry Blake
Getting cooler in Chicago.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, November 02, 2002 6:53 PM
Subject: New Files at www.teslacoil-dot-com


  > Original poster: "Jeff W. Parisse by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <jparisse-at-teslacoil-dot-com>  >  > TCML,  >  > I've
posted two files from Halloween on my driveway on the kVA Effects Web  >
site.  >  >
<http://www.teslacoil-dot-com/files/kva_halloween_2002.jpg>www.teslacoil-dot-com
/fil
es/kva_halloween_2002.jpg
  > - a 231k photo by Ross Overstreet
  >
<http://www.teslacoil-dot-com/files/kva_halloween_2002.mpg>www.teslacoil-dot-com
/fil
es/kva_halloween_2002.mpg
  > a 7.5 mb video of two runs (15 sec & 20 sec)
  >
  > The coil is the Model 9J. It was turned down so as to run off the
240v,  > 100A feed to the house.  > The meters showed about 18kVA.
Specs:  20" form -at- 1:3, .2uf cap, primary  > tapped at three turns,
48x12 toroid.  >  > Enjoy!  >  > Jeff W. Parisse  > Director, kVA
Effects  > <http://www.teslacoil-dot-com/>www.teslacoil-dot-com
  > 310-748-5893
  >
  >
  >