Re: toroid for my coil.

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

Original poster: "Gary  Weaver" <gary350-at-earthlink-dot-net> 

Hi

When your toroid gets too large you will know it.  4 streamers are really
cool looking as far as I am concerned. If your toroid is too large you get
no streamers at all so you must tape a nail or something to the side to get
1 streamer.  That 1 streamer will be a very white hot lighting bolt.  If you
tape a nail in several places then you will get more streamers.  I don't
think you can get a top load that is too large you can always attach a nail
to it and get a streamer no matter how large it is.  The larger toroid holds
a larger charge and discharges a hotter arc.

Check out my 38" diameter sphere
http://home.earthlink-dot-net/~gary350/tc10-4.jpg 12 ft sparks.

If you want to try your luck with a larger toroid check out ebay auction
3170733307 I have 4 of these to sell I am cleaning out my work shop I need
the extra space more than I need all the stuff I have piled up so I have no
place to work on new projects.

Gary Weaver



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, January 24, 2004 5:04 PM
Subject: RE: toroid for my coil.


 > Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
 >
 > Hi Luke,
 >
 > My big coil (15/60 NST, LTR, sync gap) now has a 8 x 32 toroid on it and I
 > "still" think it is too small!  The arcs hit the ceiling and floor, but it
 > still gets four streamers most of the time until one starts to really
 > dominate and reach out.
 >
 > In my humble opinion, may it as big as you reasonably can.
 >
 > I think the toroid an my small coil is too small too...
 >
 > Cheers,
 >
 >          Terry
 >
 >
 > At 09:51 PM 1/23/2004, you wrote:
 > >Wait!
 > >I was under the impression this size toroid might be too big and I may
 > >not have break out.  If you are telling me I might have multiple
 > >streamers rather than a single long one that means it could be bigger
 > >right?
 > >What would be in your opinion the largest size I should put on this
 > >system?
 > >
 > >Luke Galyan
 > >Bluu-at-cox-dot-net
 > >
 > >-----Original Message-----
 > >From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > >Sent: Friday, January 23, 2004 7:10 PM
 > >To: tesla-at-pupman-dot-com
 > >Subject: RE: toroid for my coil.
 > >
 > >Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com>
 > >
 > >The 4x30 toroid will definitely work; you may just get multiple shorted
 > >streamers rather than the longest possible single streamer.  Mostly a
 > >personal preference thing.
 > >
 > >Gary Lau
 > >MA, USA
 > >
 > >
 > >Original poster: "Luke" <Bluu-at-cox-dot-net>
 > >
 > >I will be using a 15/60 NST a cap size of about .016 mfd and I have
 > >finally
 > >decided to go the static spark gap route for this coil and attack the
 > >SRSG
 > >later if I get the bug. (thanx everyone for the info there may be a
 > >round 2)
 > >
 > >I was going to use a toroid of 4" minor dia and about 18" major dai.
 > >I happened to buy some flexible duct from McMaster carr and it is 4 1/8"
 > >
 > >dia but the smallest I can roll this stuff is like a 30" outer dia.
 > >would
 > >this be out of the question for my toroid size?  I would still be at eh
 > >4"
 > >minor dia so the voltage breakout would be the same (I think)  but I am
 > >a
 > >bit confused as to how to figure out if there will be enough joules
 > >produced to use a toroid of this size.  Seems there is no exact way of
 > >figuring this out as a definite.  So thought I would ask the experienced
 > >
 > >ones what they thought.
 > >
 > >I like this ducting and really want to use it.  But if there is no way
 > >it
 > >will work with this coil ill have to figure something else out.
 > >
 > >Luke Galyan
 > >Bluu-at-cox-dot-net
 >
 >