Re: Table-top mini coil contest update

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

Original poster: "Steven Ward" <srward16-at-hotmail-dot-com> 


The 4020 france NST is tough!  I did not sweat the 5 minute run and usually 
ran that coil for very long periods of time.  The NST does get rather warm 
after 5 minutes, but its a transformer!  Assuming you are using a nicely 
rated MMC design cap or similar, the 5 minute run is no problem really.  At 
4kv it seems that very little can break down.  My coil stayed consistent 
for the 5 minutes, no problem.  Good luck!

Steve Ward

>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: Table-top mini coil contest update
>Date: Sat, 20 Sep 2003 20:12:03 -0600
>
>Original poster: Karl L <karl-at-coolbluesky-dot-com>
>
>Chris,
>
>Thanks for the reference in your post.  I assume you plan on entering your
>mini-coil under Category II rules?  Since I have finally found a new 4020
>NST, I can redesign my coil to compete under Category I.  Then Gary, Dan
>and Steve had better watch out!
>
>Do you have any specs for your coil yet?  The only way to see if your coil
>will survive the 5 minute test, is to have a fire extinguisher nearby,
>and simply let it rip.  Works for me.
>
>Happy coiling,
>
>Karl
>
>On Sat September 20 2003 10:52 am, Tesla list wrote:
> > Original poster: Chris Roberts <quezacotl_14000000000000-at-yahoo-dot-com>
> >
> > Sounds like something to try with my mini coil. We've got an old
> > pidgeon coop in the backyard so I'll have to see if it also works for
> > me. I'm planing to enter mine as soon as I pass the 5 minute run.
> > (Still too scared to attempt it, I love my mini coil =) ) At least as
> > soon as I do it, we'll have a second entry for the category 2 contest.
> > (Karl, no more winning by default =D )
> >
> > Tesla list <tesla-at-pupman-dot-com> wrote:
> > Original poster: "Lau, Gary"
> >
> > I'm proud to announce that I have taken the #1 spot in the mini coil
> > competition!
> >
> > Last month, Dan Mccauley and I brought our minicoils to the RATCBA
> > Teslathon. While I had been seeing about a 12" max streamer at home (1"
> > shy of Steve Wards 13" record), I found that using Ed Wingate's chicken
> > wire covered Cage of Death (faraday cage) as a target, I was able to
> > achieve 14.5" strikes to the cage. Dan achieved 13" strikes, tying
> > Steve's previous record.
> >
> > I finally put together a chicken wire target at home and have been able
> > to reproduce 14" strikes, so I'll claim that as my record.
> >
> > Since my initial entry, I have changed my tank cap to .025uF, and have
> > increased my toroid size to 3.5" x 10.75". But most important seems to
> > be using a chicken wire target, and using a 1/2" brass ball! on my top
> > load breakout point.
> >
> > The minicoil web page has been updated, see
> > http://www.laushaus-dot-com/tesla/minicoilcontest/index.htm
> >
> > My coil details may be seen at
> > http://www.laushaus-dot-com/tesla/minicoil.htm
> >
> > Regards, Gary Lau
> > MA, USA
> >
> >
> >
> > -Chris