Re: KVA Model 9J

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

Original poster: "bob golding by way of Terry Fritz <twftesla-at-qwest-dot-net>" <yubba-at-clara-dot-net>

hi rob,
    Thanks for your  kind comments. It is nice get encouragement from
someone with your experience. I think I have confused you over the caps.
What I meant was 70 nano- farads. The cap is an mmc made up of 16 strings of
19  68 nano-farad ero caps. They are metallalised film  caps from Mike
Tucknotts bulk purchase from  here in the UK. I hope to have the coil up and
running again next week after it's (and mine) summer rest. I will do more
measurements and try to get hold of a moving iron ammeter as this should be
more accurate  than the digital. I am getting a sync rotary made as well so
even more things to measure. My caps should like the sync rotary better as
well. I will keep the list informed of progress.


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, October 06, 2001 11:48 PM
Subject: Re: KVA Model 9J


> Original poster: "Area31 Research Facility by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <rwstephens-at-hurontario-dot-net>
>
> Bob.
>
> I believe you claim.  That is great performance Bob.  I achieved 8 feet
> terminal to terminal in the lab with my original first compact twin
prototype
> on just 2.5 KVA in, (I have all this on videotape with witnesses) so that
> sounds close to your efficiency.  My coils were also wound with #18
enameled on
> 10" forms.  Rotary gap and Condenser Products 0.05uF capacitor.  I've
never
> found any nF caps to experiment with, but your experience would indicate
that
> they can apparently work just as well.
>
> Rob Stephens
> >
> > ----- Original Message -----
> > From: <mailto:tesla-at-pupman-dot-com>Tesla list
> > To: <mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com
> > Sent: Saturday, October 06, 2001 16:47
> > Subject: Re: KVA Model 9J
> >
> > Original poster: "bob golding by way of Terry Fritz
> > <<mailto:twftesla-at-qwest-dot-net>twftesla-at-qwest-dot-net>"
> > <<mailto:yubba-at-clara-dot-net>yubba-at-clara-dot-net>
> >
> > Brian,Justin, all,
> >     I have just plugged in the numbers for my big coil. I am getting
regular
> > 7 foot arcs with 2.2 kva input. either I am pushing more than 2.2 kva
though
> > my tranny or the coil is very efficient. Must check the input current
again.
> > with a digital multimeter across the variac it is drawing around 8 amps.
The
> > output voltage is 8200v and the cap is a 70nF mmc. the sec is 42" x 10"
> > wound with 18 awg wire. I have both a static and a rotary gap.The arc
length
> > is about the same except that the static gap doesn't quench very well.
The
> > top load is one Finn hammer toriod with a 48" x 8" ducting toriod on
top.
> > The Frequency is about 129 kHz----- Comments anyone?
> > cheers
> > bob golding
> >
> > Original Message -----
> > From: "Tesla list" <<mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com>
> > To: <<mailto:tesla-at-pupman-dot-com>tesla-at-pupman-dot-com>
> > Sent: Saturday, October 06, 2001 8:28 PM
> > Subject: RE: KVA Model 9J
> >
> >
> > > -----
> > > 10J
> > > 25 ft, 240V, 100A, therefore 24KVA or 1.04 ft/KVA
> > >
> > > 9J
> > > 16 ft, 240V, 75A, therefore 18KVA or 0.88 ft/KVA
> > >
> > > 8J
> > > 12 ft, 240V, 50A, therefore 12KVA or 1.00 ft/KVA
> > > -----
> >
> >
>
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