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Re: Seibt: Visualizing Standing Waves on a Resonator by Corona
Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
Hi Gary,
I have the #1 image which is what I've built to (so some degree). I'm
using an NST (12/60) and simply static gap I had lying around. The
driver I built similar but horizontal.
http://www.classictesla.com/seibt/siebtdriver.jpg
The driver is 5x the Seibt coils frequency as I am looking for 3
waves. Due to the geometric arrangement of the primary and it's
external C on the driver secondary, simply moving the driver
secondary left or right tunes the little maggy driver. I've had to
move my corona wires out about 2 inches on the Seibt coil otherwise I
get direct arcs from coil to corona wire (which is not wanted. We
want simply corona edging toward the wires, not directly connecting).
Here is a pic of the basic setup of the Seibt, Driver, and NST.
http://www.classictesla.com/seibt/Img_2872.jpg
Pay no attention to the bottle cap connections. I had made a hookup
mistake, but it at least shows the basics.
No pics of sparks yet. I've found the only way I can see the corona
is in full and complete darkness. This isn't the type of coil that is
spectacular like a Tesla Coil. This coil "really" needs to be
complete darkness to see the corona wave patterns. I have tried to do
pics yet of that. I actually sit in complete darkness a little just
let my eyes adjust before firing up the coil. That is something that
should be stated with this type of coil so that people don't get the
wrong impression.
You'll note in Kurt's emails that he has successfully taken photo's
of the wave pattern. Those are the best pics I know of to actually
see what is going on. I think Kurt's coil is capable of 6 wave
patterns, where my own can only do 3.
An NST however does work in a maggy configuration. Kurt is the one
who suggested giving it a try. He was right, it worked.
Take care,
Bart
Tesla list wrote:
Original poster: "Gary Peterson" <g.peterson@xxxxxxxxxxxx>
Hi Bart,
I had a little better luck and located the following two images:
1) http://www.ntmsc.org/images/seibt_effect1.jpg
2) http://www.ntmsc.org/images/seibt_effect2.jpg
I'd like to see #1 reproduced for starters. One question is whether
to stick with the classic circuit as illustrated or replace the
induction coil with an NST, and the Leiden-jar pair with two matched
MMCs. I'm leaning towards the latter. It's interesting to see that
both circuits are, in essence, magnifiers.
A related HV Tesla demonstration that I'd like to see reproduced is
"impedance phenomena," performed during his lecture "On Light and
Other High Frequency Phenomena," February 24, 1893, before the
Franklin Institute, Philadelphia, March 1893, before the National
Electric Light Association, St. Louis. An image of this demo, Fig.
183 of "On Light and Other High Frequency Phenomena" posted at
http://www.ntmsc.org/images/IRW_fig-183.gif, shows the same parallel
arrangement of the break and series connection of the capacitors in
relationship to the power supply transformer.
The apparatus can also be seen to Tesla's right in a wood cut of the
1891 lecture at Columbia; "Experiments With Alternating Currents of
Very High Frequency, and Their Application to Methods of Artificial
Illumination," May 20, 1891, before a meeting of the American
Institute of Electrical Engineers (AIEE) in New York City (see
http://www.ntmsc.org/images/columbia.gif). Note what appears to ba a
single vertical conductor parallel to the vertical loop, perhaps
mimicking the modified Seibt arrangement.
Gary
Subject: Re: Seibt: Visualizing Standing Waves on a Resonator by Corona
Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
Hi Gary,
I've been playing off and on with a Seibt coil with help from Kurt
Schraner. But as far as correspondence or some type of original
documentation, I am at a loss. Googling has turned up nothing. I'd
like to see some original documentation myself.
Bart
Tesla list wrote:
Original poster: "Gary Peterson" <g.peterson@xxxxxxxxxxxx>
In regards to the thread "Re: Seibt: Visualizing Standing Waves on
a Resonator by Corona" from May-June 2005, where can I find info
on Seibt's original demonstration? We would like to attempt
reproducing the effect at the TMSC 2006 conference.
Gary