Voltage/Length (fwd) (the Kevlar thread)

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: Voltage/Length (fwd) (the Kevlar thread)
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sun, 8 Feb 1998 20:59:02 -0600
• Approved: tesla-at-stic-dot-net

----------
From:  Greg Leyh [SMTP:lod-at-pacbell-dot-net]
Sent:  Saturday, February 07, 1998 11:47 AM
To:  Tesla List
Subject:  Re: Voltage/Length (fwd) (the Kevlar thread)

Jim Monte wrote:


> <snip>
> 
> You may be able to argue that even the toroid is large relative to the
> wavelengths of some harmonics, but assume we store all the energy
> in the topload cap.  Redoing with a primary cap of 100nF and only the 50pF
> toroid cap in the secondary,
>    Primary Energy = 0.5Cp x Vp^2 = 33.8J (at 26kV)
>    Secondary Energy = 0.5Ctor x Vs^2 = 24.2J (at 985kV)
> Maybe that order for several hundred thousand units can wait a bit.


Indeed!  These numbers seem much more realistic,
as they can be attained with a coil efficiency
of 80%, and by assuming that 90% of the secondary
energy resides in the toroid at peak voltage,
which may be attainable by 'Richard Hull grade' 
toploading of the secondary.

Nice detective work!!

-GL

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