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Re: Are Monster Toploads Really Needed?
Original poster: "albert hassick by way of Terry Fritz <twftesla-at-uswest-dot-net>" <uncadoc-at-juno-dot-com>
Hi Barry, Tom, all. I am compiling a schematic of my "toroidless" coil
and will post it soon with Terrys help. Hopefully this will help shed
some light on this subject. I am most curious to Toms reference to
'parasitic capacitance', perhaps that is what is causing my coil to
behave as such. I will post the schematic very soon. Thanks everyone
for your input. Al.
On Sat, 28 Apr 2001 12:09:55 -0600 "Tesla list" <tesla-at-pupman-dot-com>
> Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> Hi Bart, John, Terry, All. Would it be possible for me to scan in
> diagram of the exact components of my arcing Tesla coil (with no
> to the list? I can write down the schematic and all parameters and
> components so that the toriodless mystery can be solved by the more
> knowledgeable list members than I. I have a Visioneer scanner and
> scan a schematic drawing but will anyone be able to open the .aim
> without downloading the visioneer software from the website. If
> then how can I post a scheme of my toriodless coil to the list? Can
> convert my scanner file drawing to a jpg? Anyway, I can get the
> length spark from my coil no matter what the topload. I simply need
> tune the primary for any given topload and the arcs will be the
> length. A beer can atop the secondary will give the same arc length
> as a
> larger aluminum duct toriod. These are just my findings, maybe my
> are just some kind of mutiods, you know, I made them without any
> programs, so maybe, just maybe my coils are dancing to the beat of
> different drum, and maybe, they should not work at all, but they do!
> I can scan my coil and its parameters, then perhaps you guys with
> computer tools can explain what is going on here! Al.
> On Mon, 23 Apr 2001 07:58:53 -0600 "Tesla list" <tesla-at-pupman-dot-com>
> > Original poster: "Barton B. Anderson by way of Terry Fritz
> > <twftesla-at-uswest-dot-net>" <tesla123-at-pacbell-dot-net>
> > Hi Al,
> > It may be possible you are seeing no difference on your coil due
> > "something" about
> > the design. I would be curious as to your coil, power, and
> > system
> > specs if
> > it's not too much trouble.
> > Thanks,
> > Bart A.
> Tesla list wrote:
> > > Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> > <uncadoc-at-juno-dot-com>
> > >
> > > Hi all, Is it not possible that a tank circuit with an
> > appropriately
> > > wound coil could work without a monster toriod topload and give
> > equally
> > > devastating arcs? I still stand by my statement that our coil
> > > produce an equal arc when tuned with a toroid, sphere, or no
> > topload at
> > > all. The arc length remains the same as long as the primary is
> > tuned for
> > > optimum coupling. Al.
> > >
> > > On Sat, 14 Apr 2001 11:03:40 -0600 "Tesla list"
> > > writes:
> > > > Original poster: "by way of Terry Fritz
> > > > <FutureT-at-aol-dot-com>
> > > >
> > > > Message to newbies,
> > > >
> > > > I would not want newbies to be misled. Most coils
> > > > will give much longer sparks when the properly
> > > > sized toroid is used. I have to admit that I've never yet
> > a
> > > > coil
> > > > that does not benefit from the use of a properly sized toroid.
> > To
> > > > give just one example, my old coil that gave 40" sparks from
> > > > 12/30 NST, gave only 26" or so with no toroid. My newer coil
> > gives
> > > > the longest sparks (42") using a 4" by 13" toroid. If I
> > > > that with
> > > > a 3" by 10" toroid, the sparks are reduced to about 33". Of
> > course
> > > > I tune for longest sparks in every case. Of course a
> > > > topload can give excellent results also. The bottom line is
> > that
> > > > not only do Tesla coils benefit from the use of a toroid or
> > sphere
> > > > on top, they also benefit from having the *properly sized*
> > topload.
> > > > There is a topload size *range* within which the results will
> > > > similar.
> > > >
> > > > Of course besides giving longer sparks, toploads also provide
> > other
> > > > benefits such as; shielding the top secondary turns from
> > > > aiming the sparks horizontally, giving a more spectacular
> > display,
> > > > brightening the sparks, etc.
> > > >
> > > > Cheers,
> > > > John