Re: a good topload...Electrodes

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

Original poster: "Area31 Research Facility by way of Terry Fritz <twftesla-at-uswest-dot-net>" <rwstephens-at-hurontario-dot-net>

Terry,
 
I suspect that you will have a breakout problem with the top of the winding. 
Even if you put a corona control doughnut between the top winding and the 20"
sphere, it will have a ROC significantly smaller than the sphere and may still
be the source of breakout.  These spheres do look good.  A pair would probably
make a great laboratory measuring gap for a well equipped amateur lab.  Let us
know how you make out.  The price certainly isn't bad.
 
Wasn't it Garry Weaver who had obtained a nice big SS sphere from a cryogenic
dewar and used it successfully on a coil?  Perhaps he would care to add to this
discussion.
 
Robert W. Stephens
Director
AREA31 Research Facility
AREA31 Radio Observatory
Co-curator
Hangar31 Vintage TV Museum
<http://www.area31-dot-org>www.area31-dot-org
>
> ----- Original Message ----- 
> From: <mailto:tesla-at-pupman-dot-com>Tesla list 
> To: <mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com 
> Sent: Monday, March 26, 2001 20:17
> Subject: Re: a good topload...Electrodes
>
> Original poster: "Terry Fritz"
> <<mailto:twftesla-at-uswest-dot-net>twftesla-at-uswest-dot-net>
>
> Cool!  I ordered up the big one :-)  If it is good, I will get 4, 8, 12, 16
> inch sizes too so I can easily play with top load sizes in increments of 4
> inches.  Be great of finding the right size to give a single streamer and
> such.  10 inches of radius is 1/4 meter which suggest a breakout voltage of
> 750kV!  None of my coils should breakout with that big 20 incher on top! 
>
> Cheers,
>
> Terry
>
>
> At 02:53 PM 3/26/2001 -0600, you wrote:
> >Take a look at this URL. The stainless steel spheres 'gazing balls' may not
> >just be for garden ornamentation anymore. These things would make a very
> >nice top load. I have plans for a couple of them when I have spare cash.
> >
> >10" dia $26
> >16" dia $67
> >20" dia $130
> >
> >
>
> ><http://www.waterscapesweb-dot-com/orbs.html>http://www.waterscapesweb-dot-com/or
> bs.html
> >
> >Dave Huffman
> >
> >
> >
> >----- Original Message -----
> >From: "Tesla list" <<mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com>
> >To: <<mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com>
> >Sent: Monday, March 26, 2001 12:15 PM
> >Subject: a good topload...
> >
> >
> >> Original poster: "by way of Terry Fritz
> <<mailto:twftesla-at-uswest-dot-net>twftesla-at-uswest-dot-net>"
> ><<mailto:fox-at-woozle-dot-org>fox-at-woozle-dot-org>
> >>
> >> is hard to find!
> >> i've been searching high and low for a nice topload. looking through the
> >list
> >> ive been clued into copper spheres and the like from various websites.
> >> yesterday a drive around town trying to find something as simple as a
> >metal
> >> ball. i thought those large marble looking "gazing balls: i see in peoples
> >> garden might have been the answer but i found that they are glass.
> >although a
> >> search on the internet found that there are polished copper gazing balls
> >too.
> >> lastly, i searched around on the list and found a place call arthur harris
> >> that sells variou floats and depending on the cost and whatnot i might try
> >to
> >> hit them up. but before i ask them i decided to see if anybody on the list
> >> had a nice topload. im looking for something line a spun toroid or sphere
> >> thats not aluminum tape or ductwork; stuff of that nature. if anybody has
> >> some ideas id like to hear them also.
> >>
> >> -matt
> >>
> >>
> >>
> >
>