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1/4 wave theory (was Tesla Coil Operation (was -Wire....


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From:  terryf-at-verinet-dot-com [SMTP:terryf-at-verinet-dot-com]
Sent:  Thursday, May 28, 1998 9:52 PM
To:  tesla-at-pupman-dot-com
Subject:  1/4 wave theory (was Tesla Coil Operation  (was -Wire....


>From:  Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
>Sent:  Monday, May 25, 1998 10:39 AM
>To:  Tesla List
>Subject:  Re: Wire length,resonance, and Q (fwd)

SNIP>>>>>>>.

>My gut feel is that the dimensions of a typical coil are so tiny compared
>to a wavelength, that the lumped approximation should be more accurate.
>This is good, because it means we can do the calculations of leader growth,
>etc, using a fairly straightforward set of differential equations, which
>can be numerically integrated.

Jim,

        I absolutely agree 100% !!  You hit it dead on!  Only the rarest
coil's top-to-bottom phase shift would approach even one single degree.  For
all practical purposes the propagation phase shift in the secondary coil can
be disregarded.  It is just a typical lumped inductor.

        Terry Fritz