Re: SSTC does 10 foot sparks

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

Original poster: "Paul Marshall" <klugmann-at-hotmail-dot-com> 

How do you keep from frying yourself with RF. My gosh if you can get brain 
tumors (I'm not convinced) from a cell phone, what are the potential risk 
from this RF source ? Isn't it several 100 times the RF signature of a 
spark gap coil ?



Paul S. Marshall





>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Re: SSTC does 10 foot sparks
>Date: Fri, 18 Jun 2004 14:47:29 -0600
>
>Original poster: "David Rieben" <drieben-at-midsouth.rr-dot-com>
>
>Steve,
>
>This is a very impressive power vs spark length ratio! I
>may have to consider giving up on the pig coils and try
>to build one of these SSTC  coils to get that kind of
>performance. I fear that I, like some of the others have
>mentioned, am too unfamiliar w/ solid state electronics
>to comfortably take on building a SSCT of this magnitude. I know that IGBTs
>of this magnitude don't
>come cheap if you fry one or two of them in the learning
>process :^O
>
>BTW, are these 10 ft streamers as loud as equivalent 10
>ft streamers from a pig driven coil pulling around 7 to 8
>kVA? I figure that they probably aren't just because the
>absence of a SG if for no other reason.
>
>David Rieben
>----- Original Message -----
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: <tesla-at-pupman-dot-com>
>Sent: Friday, June 18, 2004 11:52 AM
>Subject: Re: SSTC does 10 foot sparks
>
>
> > Original poster: "Steven Ward" <srward16-at-hotmail-dot-com>
> >
> > Oops, forgot to mention the power consumption is less than 4800W... not
> > exactly sure because i dont have a watt meter that big but i have it both
> > fused and breakered to 20A and even after quite long runs it has never
> > popped the fuses or breakers.  My guess is around 4kw to make 10 foot
> > sparks.  Solid State is the only way i would ever have a coil this large
>at
> > my house... i cant really feed a pig on my 20A line.
> >
> > Anyway, i ran the coil again last night for a pretty long time.  We had a
> > "cage of death" set up so i limited my output to 7 feet (though it hit the
> > ground at 9 feet several times as well).  At this distance there arent
> > streamers... just power arcs to the cage the whole time.  The friends all
> > loved it and we had a fun safe night that went without problems ;)
> >
> > Steve Ward
> >
> >
> > >From: "Tesla list" <tesla-at-pupman-dot-com>
> > >To: tesla-at-pupman-dot-com
> > >Subject: Re: SSTC does 10 foot sparks
> > >Date: Thu, 17 Jun 2004 18:54:02 -0600
> > >
> > >Original poster: "Brian" <ka1bbg-at-webryders-dot-net>
> > >
> > >Hi, NICE! do you have any idea what the power input is? you are "HOT" on
> > >these ss coils! cul brian f.
> > >----- Original Message -----
> > >From: "Tesla list" <tesla-at-pupman-dot-com>
> > >To: <tesla-at-pupman-dot-com>
> > >Sent: Thursday, June 17, 2004 10:46 AM
> > >Subject: SSTC does 10 foot sparks
> > >
> > >
> > > > Original poster: "Steven Ward" <srward16-at-hotmail-dot-com>
> > > >
> > > > Coilers,
> > > >
> > > > Recently there has been a lot of advancements in the SSTC area of
>coiling.
> > > > Im proud to be the first (or at least i *think* im the first) to
>achieve
> > >10
> > > > foot (or better) sparks from a solid state tesla coil!  The design is
> > > > similar to that of my first ISSTC but using more robust gate drivers
>and
> > > > switching devices, and of course MUCH larger coils.
> > > >
> > > > I will eventually get the details up on my site, but for now here are
>some
> > > > pictures:
> > > >
> > > > http://www.hot-streamer-dot-com/srward16/ISSTCII/ISSTCII_goodpics/
> > > >
> > > > In some of the pics you will see it arcing to a green chair in the
> > > > forground, this is 115"... a few times it struck out beyond that at (i
> > > > approximate) 125".  And i havent even put the max voltage on it!  Im
> > > > limited by the ground being so close ;)  The coil stands 5" taller
>than
> > > > myself at 6'11".  The output is fierce and constantly power arcs to
> > >objects
> > > > in the 9 foot range with some scattered action at 10+'... im sure if i
>set
> > > > it up just right i can get about 12 feet from this monster and that is
>my
> > > > goal (it was 9 feet but that was effortlessly achieved).
> > > >
> > > > Enjoy!
> > > >
> > > > All comments welcome.
> > > >
> > > > Steve Ward
> > > >
> > > > _
> > > >