Re: first coil help

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

Original poster: "James Mathisrud by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jrmathis-at-pressenter-dot-com>

well, today, i tried some more tuning, raising the primaryy, finding new
tap points, and then
i noticed that one of my caps wasn't connected, then i hooked it up, and
noticed that i could
draw off a slightly larger spark. then i disconnected 2 of them, and my
spark length was
significantly reduced. so i got more bottles, and made 2 more caps, and
wired all 10
together, and now i have a corona discharge off my tennis ball terminal.
so, tomorrow, ill
make 4 more caps, and try to find the best number of caps, and try tuning
some more in hopes
of having a few sparks.


:

> >     update: well, i moved my primary up so that the first turn of the
> > primary is even with the first turn
> > of the secondary, i noticed that before the 3rd turn of primary was even
> > with the first turn of sec. this
> > helped a little. now im drawing off 4-4.5 in sparks, as opposed to 2in
> > sparks, but still no breakout!
> > tomorrow, i will start building an mmc cap (research and such) in hopes of
> > my crap caps being the main
> > problem. unless i can find someone who can measure the capacitance.
> > allowing me to adjust where necessary.
> > thanks to everyone
> > Ryan
> >
> >
> > >
> > >
> > >
> > > Tesla list wrote:
> > >
> > > > Original poster: "James Mathisrud by way of Terry Fritz
> > > <twftesla-at-qwest-dot-net>" <jrmathis-at-pressenter-dot-com>
> > > >
> > > > ok, well my coil is getting more powerful, but im still not getting
> > > > breakout, here are my coil specs
> > > >
> > > > Tank circuit
> > > > power    1- 15kv 30ma nst
> > > > gap         1 gap 2 1.5in brass electrodes quenched with 30psi set at
> 3/8
> > > > in wide
> > > > cap         7 saltwater beer bottle caps filled with about 10 oz. ea
> > > > s gap      3 1/4in carrage bolts
> > > > chokes   2  2in pvc pipes wound with #28 wire about 7 in long ea.
> > > > primary   16 turn helical primary 1/4 in dia. spaced 1/4 in ea. inner
> > > turn 8 in
> > > >                 at 45deg angle tapped at 12th turn
> > > > secondary-4.5 in pvc pipe wound with #22 about 21.5 in.long roughly
> 800
> > turns
> > > > discharge terminal- tennis ball covered in Al duct tape
> > > > ground 2-4foot copper clad rods
> > > > im also using a 600 watt dimmer to run the transformer
> > > >
> > > > so far im able to draw off about 2-3 in sparks, but im not getting any
> > > > breakout. im starting to think that
> > > > maybe i need more nst's because my system might be too big for the one
> i
> > > > have also, i hope this isn't the
> > > > problem, but maybe my primary it at too great of an angle. hope this
> helps
> > > >
> > > > thanks for everyones contributions, you have all been very helpful so
> far
> > > > and i look forward to getting
> > > > this thing working one of these days.
> > > > Ryan
> >
> >
> >
> >