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kVA vs OD (was: Can anyone help ?)



> Original Poster: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net>
> 
> to: Cabbott
> 
> To be really effective at this cap value you will need to run around 25-30
> kva input power level with a sec toroid around 48 x 12 inches.  A standard
> non-synchro RSG with 10 rotating electrodes running around 1725-1800 rpm
> with 4 spark gaps (two each side of wheel) will give you very good
> performance with the parameters you have specified.

Now that I'm a subscriber of the 'big toroid' approach, I must say
that 25-30kVA is rather extreme for a 48 x 12 toroid!  My old coil
now runs at 26kVA, and even its old 65" x 13" toroid was too small.
The new 108" x 28" space-frame toroid is a far better fit, and the
coil will now continuously generate 25ft ground strikes at 26kVA.

BTW, I'll be running it in a week or so at the shipyard for any of 
the few Bay Area local coilers that want to stop by.
-- 


-GL
www.lod-dot-org