Re: SSTC does 10 foot sparks

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

Original poster: "June Heidlebaugh" <rheidlebaugh-at-desertgate-dot-com> 

Paul:   Rf burns are a function of RF frequency. DC will produce no RF
burns. 2  Ghz will cook you. I have been burned with 23 Cm microwave
generated by a TC under special conditions. Normally a TC produces low 100
Khz frequency power and doesn't have the problems that higher frequencies
have. A cell phone operates just under 1 Ghz and has been proven to have
problems at that high frequency.
    Robert   H
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, June 21, 2004 8:05 AM
Subject: Re: SSTC does 10 foot sparks


 > 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
 > > > > >
 > > > > > _
 > > > > >
 >
 >