Re: Modular Secondary

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

Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz <twftesla-at-uswest-dot-net>" <acmq-at-compuland-dot-com.br>

Tesla list wrote:
> 
> Original poster: "Christopher Boden by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <chrisboden-at-hotmail-dot-com>

> How about sections, each 12" dia and 12" long of PVC (Or Lexan if you wanna
> spend $500+ a FOOT!, something about casting....I dunno) wound with 18AWG or
> so. They would be wound all the way to the end with the wire connecting to a
> 1"thick UHMW disk that is mounted flush to each end and press fit inside.
> Then you just stack the modules to make a 1:4 1:5 or 1:6 or whatever you
> like. The center of each endcap is threaded to a suitable size (1/4-20 would
> work, maybe a little bigger) and fitted with a Nylon stud. This prevents
> internal arcing and still keep it from tipping over.

See the paper:
K. D. Skeldon, A. I. Grant, G. MacLellan, and C. McArthur, "Development 
of a portable Tesla Coil apparatus", European Journal of Physics, 21,
2000,
pp. 125-143.

Shows a "telescopable" coil built in sections. Many pictures.
The paper was available on-line some time ago at the journal's site.

Antonio Carlos M. de Queiroz