panasonic mmc rating?

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

Original poster: "Laurence Davis by way of Terry Fritz <twftesla-at-qwest-dot-net>" <meknar-at-hotmail-dot-com>

I'm building an mmc using panasonic caps from the same group as
the ones spec'd in the terry filter.  the digikey p/n is p10513-nd.
I'm building an mmc to replace the single pulse cap that I killed
in my friends tabletop coil.  its using a 6500v/20ma open frame nst
and the resonant cap is about 8nf.  the rms output is ....  okay
my stupid math skills are haunting me...  is the rms output 6500 x 1.41
or 6500 x 2 x 1.41 ?  the cap i designed is 2 strings of 9 0.033uf 1600v
caps. giving a rating of 14.4kv at 7.5nf ( i think, the plans are in the 
other room. )

the question:
to calc rms output: 6500v x 1.41 = rms output?
I'd like to overrate the mmc so I would get 6500 x 2 for the target rating.

also planning on making the mmc into a cube of sorts due to size 
constraints.  if cooling becomes an issue, I will place a small fan on one 
end of the cube.  the mmc cube will be like this: imagine two strings of 
caps folded length-wise 2 times.  2 wide by 3 high. about a 3" cube.

larry