Fwd: Re: Small, Medium, Large coil sizes

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

Original poster: "Randy by way of Terry Fritz <twftesla-at-qwest-dot-net>" <randy-at-gte-dot-net>

I'd say if you can sit in the topload, it's a LARGE coil,
eh, Greg?   :)

Randy


>Original poster: "Greg Leyh by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><lod-at-pacbell-dot-net>
>
>
>Original poster: <A123X-at-aol-dot-com>
>
>  > What do all of you consider to be a mini coil, a small coil, a medium
>coil, a
>  > large coil, a very large coil, and a beastly coil?
>
>It might be possible to assign some absolutes to this question.
>There are some fundamental limits on maximum coil size for a
>standard, disruptive TC, designed to produce long arcs.  There
>will also be a set of practical limits for the *smallest* possible
>coil size, though these limiting factors are likely to be based
>on quite different parameters, such as the secondary Q as the
>shrinking coils' frequency rises.
>
>Rough calculations for a smallest possible (practical) coil yield:
>Secondary --   0.3"(D) x 0.9"(H)
>Input Power -- 15W (approx)
>
>More thorough calcs for a largest possible practical coil:
>Secondary --   22ft(D) x 110ft(H)
>Input Power -- 5,7oo,oooW
>
>Given these rough limits, one could propose that:
>
>A small coil is one that operates near the smallest practical limit of 15W.
>
>A large coil is one that operates near the largest practical limit of 5.7MW.
>
>A medium-sized coil is one that operates near the geometric mean of these
>small and large limits, which for this example would be around 9246W.
>
>A beastly coil is one that is very difficult to deal with, either by its
>size or by its design.
>
>
>-GL