Re: Conical secondaries

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

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-uswest-dot-net>" <bert.hickman-at-aquila-dot-net>

Steve,

Thanks for the further explanations and the picture! Any idea of the
diameter of the ball in the photo? Sounds like a very interesting
experiment indeed... and 15 kJ makes on heck of a BANG(!)

-- Bert -- 
-- 
Bert Hickman
Stoneridge Engineering
Email:    bert.hickman-at-aquila-dot-net
Web Site: http://www.teslamania-dot-com

Tesla list wrote:
> 
> Original poster: "Steve Rosenthal by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <sdrosen-at-cwia-dot-com>
> 
> Bert,
> The experiment was conducted with the 10kW monopolar coil and a 15kJ
capacitor
> bank.
> The base winding of the Tesla Coil was both grounded and directly
connected to
> one
> terminal of the capacitor bank. A 1 meter length of small guage (slightly
less
> in diameter than
> the secondary coil winding of the coil) was connected between the high
voltage
> of the capacitor
> bank and the discharge electrode and functioned as a safety fuse.
> 
> A typical experiment would proceed with placing the elevated discharge
> electrode in close proximity
> (5 to 8 feet) to the output terminal of the Tesla Coil. The capacitor was
then
> charged to a maximum
> voltage of 50kV at which point the Tesla Coil was energized. When the high
> voltage streamer contacted the discharge electrode, the energy from the
> capacitor bank was dumped into the streamer and returned to ground
through the
> seconday winding.
> 
> The observable results of such experimentation would be an extremely bright
> flash accompanied by an
> explosive sound. Photographic documentation revealed that the high current
> discharge was very convoluted in shape.
> 
> http://hot-streamer-dot-com/temp/ball1.jpg
> 
> ----- 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: Friday, May 04, 2001 3:43 PM
> Subject: Re: Conical secondaries
> 
> > Original poster: "Bert Hickman by way of Terry Fritz
> <<mailto:twftesla-at-uswest-dot-net>twftesla-at-uswest-dot-net>"
> <<mailto:bert.hickman-at-aquila-dot-net>bert.hickman-at-aquila-dot-net>
> >
> > Tesla list wrote:
> > >
> > > Original poster: "Steve Rosenthal by way of Terry Fritz
> > <<mailto:twftesla-at-uswest-dot-net>twftesla-at-uswest-dot-net>"
> <<mailto:sdrosen-at-cwia-dot-com>sdrosen-at-cwia-dot-com>
> > >
> > > Here's a conical secondary coil. (and a copper ribbon primary)
> > >
> > >
> <http://hot-streamer-dot-com/temp/sdCoil.jpg>http://hot-streamer-dot-com/temp/sdCoil
> .jpg
> > >
> > > This particular coil was built by Dale Travous, and was used in many
> > > interesting experiments, including ball lightning simulation.
> > >
> > <SNIP>
> >
> > Nice looking coil! Was he successful in generating any hints of ball
> > lightning with it?
> >
> > -- Bert --
> >
> > --
> > Bert Hickman
> > Stoneridge Engineering
> > Email:    <mailto:bert.hickman-at-aquila-dot-net>bert.hickman-at-aquila-dot-net
> > Web Site: <http://www.teslamania-dot-com>http://www.teslamania-dot-com