Re: Top-load-less TC

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi Al,

I still would like to know the major and minor dimensions to your "large"
toroid. Most of the other
top loads you identified are small and there will be very little change
between them. Even the 10"
sphere is only 14pF minus secondary, ground, and nearby object effects. So
it's small as well. You
didn't post your toroid dimensions and I'm curious if your toroid is
possibly too large (or too
small).

I honestly don't believe your coil is an anomoly. It is also possible that
when you say "large
toroid", we have something in mind like an 8" x 32" (edge to edge
diameters) in our minds and it's
really much smaller than this. Finding the proper toroid size takes some
time and testing to truely
find it for your coil. It can be too small or too large. For myself, the
large toroid dimension is
currently a missing piece of data.

Sorry to hear about your recent pc crash. Don't feel alone, I've gone
through several this year on
2 different pc's. I now keep the same info on both if one goes down.

Take care,
Bart Anderson

Tesla list wrote:

> Original poster: "albert hassick by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <uncadoc-at-juno-dot-com>
>
> Hi Bart,  The "spring" is a natural year round flowing earth spring, it
> is in the back acre of my house and it seemed a excellent place to sink a
> Tesla ground since the earth is always moist in that area and the ground
> is soft and facilitates easy placement of grounding electrodes.  The
> primary tap is variable, and with this particular coil will vary between
> turns #6 and #9 of tube, dependant upon the Ctop, which can vary from a
> small 1/4" bolt with a toggle wing, to a large aluminum duct toroid.
> There is always some form of Ctop upon the secondary, and it varies
> between a small bolt/ aluminum pop cans, a 10" plastic hollow ball
> covered with aluminum 'duct' tape, or a large aluminum duct toriod.  All
> of these can be utilized to procure an equal size arc from the secondary
> coil by fine tuning the primary coil for maximum arc regardless of the
> topload.  Toploads are optional for this coil, which is why I am puzzled
> by list members saying that a extreme toroid is conducive to maximum
> output.  I have found that this is not the case at all.  Now either my
> coil is an anomaly, or all coils can be tuned to give equal spark output
> regardless of the topload.  Maybe a lot of list members just go by the
> computer designed topload and never really experiment to see what a Tesla
> can actually do with any given topload or no topload at all.  This is
> what I am trying to determine.   Hey I am no expert, I am just reporting
> my observations however clumsy they may seem.   Al.
>
> On Sun, 27 May 2001 15:25:06 -0600 "Tesla list" <tesla-at-pupman-dot-com>
> writes:
> > Original poster: "Barton B. Anderson by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
> >
> > Al,
> > Thanks for reposting these specs. Could you please elaborate on four
> > items:
> > 1) The spring?
> > 2) Where do you actually tap the primary for loaded and unloaded
> > Ctop?
> > 3) If Ctop, type and size?
> > 4) Without Ctop, where do you pull arcs from? (small gizmo I
> > assume).
> >
> > Thanks,
> > Bart A.
> >
> > Tesla list wrote:
> >
> > > Original poster: "albert hassick by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <uncadoc-at-juno-dot-com>
> > >
> > > On Sun, 27 May 2001 03:03:51 -0400 albert hassick
> > <uncadoc-at-juno-dot-com>
> > > writes:
> > > > Hi Scott, Barton.  Thanks for your interest!   OK, here goes
> > with my
> > > > additional specs of the coil you requested.   Secondary:  8"
> > > > Quickcrete cardboard form, 24" tall, coated internally with two
> > > > coats of Minwax 'satin polyurethane' and sealed atop that with
> > > > 'Tiger hair fiberglass resin".  The exterior of the coil
> > received
> > > > three coats of said poly and was then wound with #18 super
> > motor
> > > > wire from the local motor shop, it was some kind of
> > isopolyidamide
> > > > or something motor winding wire and it was the best that there
> > is to
> > > > be had.  The form was close wound for the first 22" and was
> > then
> > > > spiraled loosely for the last three turns to reach the top of
> > the
> > > > form.  I guess about six pounds of wire on the form.  It was
> > then
> > > > coated with said poly coating until the winding was smooth and
> > free
> > > > of gaps.  I guess about 6 or seven coats of poly.    Ground wire
> > to
> > > backyard
> > > > spring:  1/4"od refrigeration tube layed next to a #4 aluminum
> > THW
> > > > single cable, both terminating in a 1/2" hard copper tube
> > driven
> > > > into the loose moist clay of a year round natural spring.
> > Primary:
> > > > Flat, 3/8"od copper tube. 14 turns total, 5/16 max. between
> > > > turns.  Tuning: variable, dependant upon the use and type of
> > > > topload, if any.  Tuning can give the same spark length
> > regardless
> > > > of the size, construction, shape, or composition of the
> > topload.
> > > > Distance, inner turn of primary to secondary: slightly more than
> > 1".
> > > >  Length of arc in free air: six to seven feet, and approaching
> > eight
> > > > feet dependant upon weather. Spark length to grounded object:
> > four
> > > > to six feet.  Also, please note: this coil can give the same
> > results
> > > > if or if not connected to a ground poise for the secondary
> > bottom
> > > > terminal.    So, what is the verdict?    Al.
> > > >
> > > > On Tue, 22 May 2001 18:18:32 -0700 Scott.L.Hanson-at-seagate-dot-com
> > > > writes:
> > > > > There is nothing in your power supply or tank circuit that is
> > out
> > > > of
> > > > > the
> > > > > ordinary, or would seem to have any affect on the secondary.
> > I
> msnip...