Re: suggested capacitance

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

Original poster: "Mark Broker by way of Terry Fritz <twftesla-at-qwest-dot-net>" <broker-at-uwplatt.edu>

Hi, justin

The Geek Group has a pretty thorough MMC Design chart that basically takes
all the work (fun?) out of it.  Check out:
http://thegeekgroup-dot-org/Sales/MMCsales.html

For your coil, the most cost-effective Geek GRoup MMC would actually be a
slightly-LTR cap using one string of 10 caps.  10 caps is about as low a
voltage rating as I'd recommend for 15kV, and would reduce the 
resonant-rise condition for a truely resonant cap.  If you build a 120BPS
SRSG/TG in the future, add a second string of caps :-)

Mark Broker
The Geek Group's Chief Engineer


8/11/01 12:16:49 PM, Tesla list <tesla-at-pupman-dot-com> wrote:

>Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Cydesho-at-aol-dot-com>
>
>I am thinking of building a MMC for my coil, but I have no idea what the best 
>capacitance would be. I downloaded TCCAD, which will calculate the best 
>capacitance to use with a given transformer. The program was designed for 
>British coilers, and it calculates the capacitance with the mains frequency 
>at 50 Hz. Does that make a difference? What is the best capacitance for a 15 
>kV 60 mA NST?
>                                    Justin
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