Re: MMC Advice

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

Original poster: Mark Broker <mbroker-at-thegeekgroup-dot-org> 

Fine....  if you really want to use RELL....  (see previous "CD cap MMC" post)

Static gap, SRSG, ARSG?  Ballast type and value?  PSU output filter ("Terry 
Filter")?

I generally recommend adding about 25% or more to the margin in non-NST 
coils, and would argue that a cap rated for 16kV with a 11kV PDT is too 
low.  18kV would be minimum IMO.  Bigger caps, within reason, are generally 
better.

Mark Broker
Chief Engineer, The Geek Group


On Sun, 12 Oct 2003 19:41:25 -0600, Tesla list <tesla-at-pupman-dot-com> wrote:

>Original poster: Gregory Hunter <ghunter31014-at-yahoo-dot-com> I could use a bit 
>of help thinking this one through.
>I'd like to build an MMC on the cheap using 150nF/2kv
>CD942C caps from Richardson Electronics. This will be
>for my 6" x 30" system using a 5kva/11kvac pole xfmr.
>Their minimum order is 28 pieces. For ~$70, I can have
>three strings of 9 caps for 50nF-at-18kv.  Another
>possibility is to buy 32 caps giving me four strings
>of 8 caps for 75nF-at-16kv. Is the extra 15nF worth the
>loss of 2kv max voltage rating and the extra few
>bucks? Will 75nF give significantly more bang than 50nF?
>
>=====
>Gregory R. Hunter
>
>http://hot-streamer-dot-com/greg