Re: Tesla's large pancake coil

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Hi Bill,

I've always wondered about that coil. The large pancake coil is on 
the cover of a Tesla book or two and in other photos in books. This 
is the first time I've seen a discharge terminal. The artist (last 
graphic link you showed) appears to show a dark flat coil behind the 
front pancake coil. Although the artist drawing is simply a drawing, 
it's interesting the image shows two pancake coils (Ls, Lp I 
presume). Seems in other photos, there's a cylindrical driver. I'm 
not sure that the arcs shown would actually strike outward as shown, 
but it is interesting.

Bart

Tesla list wrote:

> Original poster: William Beaty <billb@xxxxxxxxxx>
>
>
>
> I stumbled across this newspaper illustration on Tesla Mem. Society site:
>
>   A Demonstration Made at Tesla's Laboratory Yesterday
>   http://www.teslasociety.com/pictures/teslaarticle2.jpg
>
>
> Odd that the discharge goes *away* from the coil.   The coil's EM field
> must sculpt the discharge path, no?
>
>
> This appears to be the same device which hung in Wardencliffe:
>
>   Wardenclyffe: exhibition of various inventions
>   http://www.teslasociety.com/pictures/labpic.jpg
>
>
> In these other famous photos, the sphere-electrode is not installed:
>
>   http://www.teslasociety.com/posters/teslalab.jpg
>
>   http://www.teslasociety.com/pictures/teslapic.jpg
>
>
> Here's another artist's conception, again showing the discharge going away
> from the coil.   I wonder if the discharge path was so reliable that Tesla
> could actually sit as shown below?  Or is it just an "artist's
> conception?"
>
>   http://homepage.ntlworld.com/forgottenfutures/tesla/tesla_4.gif
>
>
>
>
> (((((((((((((((((( ( (  (   (    (O)    )   )  ) ) )))))))))))))))))))
> William J. Beaty                            SCIENCE HOBBYIST website
> billb at amasci com                         http://amasci.com
> EE/programmer/sci-exhibits   amateur science, hobby projects, sci fair
> Seattle, WA  425-222-5066    unusual phenomena, tesla coils, weird sci