[Prev][Next][Index][Thread]
RE: MMC Value
Still working perfectly. 12KV, 200ma, only 7 shunts per "pack", and running
dry. I was running it at 140V input instead of 120V so it was probably
making something like 240ma. It only got really hot when we did the ~2 min
run with the people inside the birdcage. I can't seem to kill NSTs. I
don't have a safety gap, have minimal RC filtering, and operate at >300% of
the transformers rated power.
12KV, 200ma seems to charge 40nF OK, but I may have had better results with
30nF. I need to keep everything else constant on my rig for a while and
experiment with capacitance. Seems like the 30nF gave me higher break rates
which led to curvy arcs that demonstrated more motion and "character".
Making arcs in Huntington Beach,
Ross Overstreet
http://users.better-dot-org/roverstreet/
-----Original Message-----
From: Tesla List [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, May 13, 2000 8:23 AM
To: tesla-at-pupman-dot-com
Subject: Re: MMC Value
Original Poster: "Jim Lux" <jimlux-at-jpl.nasa.gov>
Of course, the varnish melted out of his hot rodded NST a few weeks ago.you
could smell it from 10 feet away (downwind, I grant you).. Ross, is it
still functional?
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: RE: MMC Value
> Date: Saturday, May 13, 2000 1:55 AM
>
> Original Poster: "Basura, Brian" <brian.basura-at-unistudios-dot-com>
>
> Terry/all,
>
> Ross is charging a .04uf cap with his 15/60 but it's been Hot-Rodded for
> higher current output. His 5 and 6' arcs from the single NST are truly
> amazing. Check out
http://users.better-dot-org/roverstreet/components/psu.html
> for ENST pictures.
>
> Regards,
> Brian B.
>
> -----Original Message-----
> From: Tesla List [mailto:tesla-at-pupman-dot-com]
> Sent: Friday, May 12, 2000 11:13 AM
> To: tesla-at-pupman-dot-com
> Subject: Re: MMC Value
>
>
> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
> Hi Jorge,
>
> My 15kV/60mA uses 28nF. It is a 120 BPS sync rotary gap system. I
> use 50
> 56nF 1600 Volt Panasonic caps in a 5 x 10 array. A 7 x 14 array would
give
> better margin than my EMMC and that would work out to just under 100
caps.
> Of course if you don't have a rotary sync gap, you may not need as many
> strings so be sure to make them selectable. Then you can use as many
> strings as you need to get the best sparks. As far as I know, 28nF is
the
> maximum capacitance a single 15/60 can charge.
>
> Cheers,
>
> Terry
>
>
> At 10:08 PM 05/11/2000 -0500, you wrote:
> >Hi fellow coilers !
> >
> >
> >Im in the process of building my fourth Tesla Coil and im giving MMC
caps a
> >shot, I've been looking at some web pages with Tesla Coils that use MMC
> >caps and the values are always lower than what's required , was
wondering
> >why is this ???
> >My system uses a 15kv 60ma neon tranie, what value do you guys suggest
for
> >this setup???
> >
> >
> >Thanks all !!!
> >
> >Jorge Fuentes.
> >
>
>