Re: tesla's colorado lab

["Malcolm Watts" <M.J.Watts-at-massey.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

On 10 Aug 00, at 12:12, Tesla list wrote:

> Original poster: "acmnovak" <acmnovak-at-email.msn-dot-com> 
> 
> Hello All,
> Today I uploaded a picture to my xoom-dot-com account that might interest you.
> Sorry but I don't have a webpage or anything to go with it... Maybe someday.
> Anyhow, here it is:
> <http://members.xoom-dot-com/mpn54601/csnlab.jpg>http://members.xoom-dot-com/mpn546
> 01/csnlab.jpg 
>  It is from a book called "The Fantastic Inventions Of Nikola Tesla". the
> picture shows a small part of the colorado springs facility. One thing that
> cought my eye in the photo is the large wire size used on his coils. In the
> original photo, you can see the large wire much more easily than in the scan.
> It appears as if he used 6 guage wire on a twelve inch form. Also, Tesla once
> said "...the builder will find that hundreds of turns are not necessary
for the
> secondary to achive high voltages..." This was quite a shock to me seeing as
> most of use use upwards of 800 turns on our coils. I realize that he was
> talking about magnifiers, but can't we apply this knowledge to our coils? 
> Anyone tried using really large wire on their secondary? 
> I'd like to try a 4" x 16" (10cm x 40cm) coil wound with 18 guage enameled
> wire... That might be interesting along with a tightly coupled primary with
> maybe two or three turns of 3/8" copper tubing. 
> Any thoughts?

The high voltage from few turns thing applies to CW driven 
coils (e.g. D.H. Sloan's accelerator coil produced something 
approaching 1MV and had a secondary of less than 20 turns if 
memory serves). CW is the key - energy is pumped in on a 
continuous basis and the secondary keeps on ringing up until 
its losses or a discharge exceed the per-cycle energy that the 
supply is pumping in. To do this with cap discharge would 
require a cap energy that delivered the equivalent amount of 
energy that the CW system stores in the resonator over ?? 
cycles. Note that the Corum's analyses of super high voltages 
from TCs explicitly assume a CW mode of operation.

Regards,
Malcolm