MMC size and rotary gap (fwd)

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---------- Forwarded message ----------
Date: Tue, 15 May 2007 20:40:20 -0500
From: Andrew Nettles <anettles@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: MMC size and rotary gap

I'm trying to decide if I should use three 9kV 30 mA transformers or go 
ahead and spend the money and buy a 15 kV 60 mA.  I know the latter would 
provide a little more power, but I already have two Franceformers that are 
matched and I can buy another one for $30.  I'm also not sure about removing 
the GFI from the higher voltage Franceformers (I think it's easy, just not 
sure).

So thinking about building the MMC.....I'll be using a 120 bps SRSG.  
According to some stuff I've read, I should use a LTR cap of 2.5 to 3 times 
the Cres - right?  So for the 3-9kv, I would need 66nf (26.5 x 2.5) or if I 
bought the bigger transformer I'd need 27nf.

I'm trying to figure out which would be the cheaper/better way to go since I 
might end up spending so much more on capacitors that I should have just 
bought the bigger transformer.  Any input on this?

Thanks,
Andrew N