Re: Capacitor configuration?

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

Original poster: "David Knaack by way of Terry Fritz <twftesla-at-uswest-dot-net>" <dknaack-at-rdtech-dot-com>

> Original poster: "BunnyKiller" <bigfoo39-at-telocity-dot-com>
> > Original poster: "David Knaack" <dknaack-at-rdtech-dot-com>
> >
> > I'm running a 12/30 NST with a flat 7" ID, 1" t-t spacing
> > primary.
> >
> > Resonance with the NST would be around 0.007uF, so I'm thinking
> > of going for around 0.025uF (2 strings of 12 of the 0.15uF caps).
> 
> Hi DK...
> 
> since you are running 12/30's i would like to suggest that a 1/4" 
> space between each turn is a bit more effective.

Ok, I presume I can up the current later without a problem?
I don't see going to higher voltage anytime in the near future.

> for a 12/30 NST  .006uF would be resonant maybe if you 
> went .007 for a cap for the single 12/30 NST would be good...

Are you sure on that?  The design program I was using
(I forget which one it was now) said 0.007 for resonance
on the 12/30 NST.  Does it matter?  I'm mostly just
interested in keeping my NST happy.

> if you plan on going to a 12/60 NST setup the cap value 
> should be near .015uF. an idea would be to make 2 sets
> of 20-24KV -at- .007uF and parallel them later

I'm hoping to add a second (or more) 12/30 NST later, so
i'll go ahead and get the extra caps now.

Thanks
DK