Re: NSTs/MMCs

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

Original poster: "Michael by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mdeegan10-at-attbi-dot-com>

Matt,
    Thanks for the reply. We've decided to go the route you suggested, with
an MMC for the cap. My question now (always a question :) ) is if there is
any good advice anyone can give me regarding building an MMC for 4 15/30's,
with TeslaCAD giving me a 269.22khz resonant freq. (6" coil, 15 turn 1/4"
copper primary with 1/2" spacing)
            Thanks again,
                    Michael
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, April 06, 2002 12:47 PM
Subject: Re: NSTs/MMCs


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Mddeming-at-aol-dot-com>
>
> In a message dated 4/5/02 8:14:04 PM Eastern Standard Time,
tesla-at-pupman-dot-com
> writes:
>
>
> >
> > Me and my friend recently acquired some new NSTs for use in our 6" coil.
Up
> > till now we've been using a single 12/30 for operation with a 6 beer
bottle
> > SWC. We are not sure what setup will benefit our coil the most.
Available
> > are:
> > 4 15/30 NSTs
> > 1 12/60
> > 1 12/30
> > I also had the the opportunity to get a pair of GE 0.5uF capacitors
rated at
> > 2KV off ebay, which should arrive shortly. What setup will work best
with our
> > coil?
> > 6" secondary
> > 15 turns 1/4" primary
> > 8 gap RQ style static gap
> > 6Saltwater caps (soon to be a pair of 0.5uF caps)
> >
> > P.S. we are also looking at possibly going with the MMC route this
summer,
> > does
> > anyone have some suggestions for this?
> >
> > Thanks,
> > Michael
>
>
>
> Hi Michael,
>          I would use the 4 15/30s in parallel and sell the the caps and
other
> two trannies s  in order to buy MMC caps, or use them for JLs, or boat
anchors,
> etc. Unfortunately, your caps are too big capacity-wise and too small
> voltage-wise for this size coil. You would need a dozen of them in series
for
> good voltage rating, then the .042 uF resultant cap would be about right
for
> LTR. As it stands, the 0.25-at-4KV result you'll get would require a topload
the
> size of a whole garage, and would last about 2 seconds with any of your
> transformers. You can verify this through any of the on-line TC programs.
>
> Matt D.
> G3-1085
>
>