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Re: Twins Spark Videos



Original poster: "colin.heath4 by way of Terry Fritz <twftesla-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>

hi
    with 25 to 28kw you should be achieving massive sparks
nick fields twin of hvfx gives 8' easy with 3kw 25kw should be giving 15'
easy in detuned state
cheers
colin
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, July 20, 2002 7:44 PM
Subject: Re: Twins Spark Videos


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Rscopper-at-aol-dot-com>
>
> Terry,
>
> My neighbors are my loyal fans, you can hear some good oohs and aahhs in
the
> background of the full video.
>
> The sparks pulse on/off for cooling.  The choke I am using for current
limiting
> is only 8 AWG, and it get's real hot at 103 amps.  The rotary spark gaps
are
> only 1/8-in tungsten, and as they get hot their resistance goes way up and
the
> sparks get shorter.  Two of the next 100 or so projects I have to do are
to
> rebuild the choke and RSG.
>
> Yes I am running at 24-25KW, and the sparks could be longer, but I have
> purposely "detuned" a few items to prevent self-destruction of the system.
The
> spark gaps are not at max to get consistant sparks and save my caps, the
break
> rate is 480 and not 120 to cool off the RSG tungsten better.  My goal is
to be
> able to set up and run for a few hours every weekend without having to fix
it
> every time (like I used to have to do).
>
> If I can get consistant thick white-hot 10-ft arcs between the Twins
without
> self-destruction, I'm happy.
>
> Scott
>
>
> >
> > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tb3-at-att-dot-net>
> >
> > Cool stuff.  You must be in good with the community to
> > have it in out front on the driveway.  I always hide my
> > TC work in the back yard.
> >
> > Why do the sparks pulse on and off?  A problem, or are
> > you just nervous to switch it on for too long?
> >
> > The web site says:
> >  Input Voltage Measured (VAC) 237
> >  Input Current Measured (A) 103
> >  Output Voltage (VAC) 14400
> >
> > Is that what you were really pumping into the coils?
> >  237 * 103 = 24,411 Watts?
> >
> > If so, something is still way out of tune.  You could
> > expect substantially more than 10 foot sparks from 24
> > KWatts.
> >
> > Terry Blake
>
>
>
>
>
>
>