Re: RE:New Toy

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

Original poster: "Allanh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <allanh-at-starband-dot-net>

Where do you live, I've never heard of 120 cps line freq.

allan

>>>Of course, I misspoke.  It is 60Hz AC with the wand firing on the peaks
and valleys of the AC cycle. - Terry<<<

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, June 07, 2002 3:01 PM
Subject: RE:New Toy


>
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
>
> Hi,
>
> I looked at the output of the wand with the plane wave antenna today.  It
> generally fires at the 120Hz line frequency:
>
> http://hot-streamer-dot-com/temp/Tek020607-1.gif
>
> Sort of neat in that the electromagnetic contacts fire many times at the
> peak of the AC cycles.
>
> http://hot-streamer-dot-com/temp/Tek020607-2.gif
>
> http://hot-streamer-dot-com/temp/Tek020607-3.gif
>
> Looks like roughly 15 x 120 = 1800 BPS!
>
> Has the nice Tesla coil wave form:
>
> http://hot-streamer-dot-com/temp/Tek020607-4.gif
>
> Fo is about 330 kHz.
>
> http://hot-streamer-dot-com/temp/Tek020607-5.gif
>
> It is interesting to note that the start of the waveform is very clean
> compared to normal Tesla coils.  The gap is only breaking about 200 volts
> instead of say 20,000 so the stored energy in capacitance around the gap
is
> not suddenly shorted causing massive RF EMI.
>
> So far I have resisted the temptation to take it apart since it is new and
> not broke yet :o))
>
>
> tesla-at-ian-dot-org wrote:
>
> >Don't worry about any radiation from this.  It puts out lots
> >of high frequency RF, but no x-rays or radiation.
>
> The wand does not put out X-rays but the iron cross vacuum tube sure did!
>
> >What you have is an Odin coil, commonly known as a Violet Wand
> >which were used in the early days of the 1900's as a medical
> >device.  It was said to cure hair loss, cancer, blindness...
> >pretty much everything.
>
> Of course, Jeff Behary's "Turn Of The Century Electrotherapy Museum"
tell's
> all:
>
> http://www.electrotherapymuseum-dot-com/
>
> You can even buy modern reproductions of the old wands.  (Low pressure
> instead of vacuum so no X-rays.)  Thank goodness for modern doctors!
>
> >If you like neat electrical things, go find an older one.
> >They make a great addition to any collection of electronic
> >junk.  New ones are much better made so better for
> >demonstrating it to people, old ones look cool.  :-)
>
> I got mine to use. ;-))  The new ones are very well made replacing old
> stuff with modern materials but the design is all the same.  If anyone has
> an old one that does not work, I ran across these instructions to fix
them.
>
> http://www.electrotechnicproduct-dot-com/get_technical/article_1.html
>
> Ebay has them from time to time but old ones probably have problems.
> Probably nothing too bad that could not be fixed.  I think ETP will sell
> you parts for them.  I notice ETP still sells induction coils with up to 6
> inch spark length!
>
> For those wondering what a Tesla coil could be used for, Here is a new
one:
>
> http://www.electrotechnicproduct-dot-com/bottle.html
>
> They use the high voltage RF to test the vacuum in bottles like pills and
> such are stored in.
>
> US Patent No. 4,546,319
>
> This is interesting in that they use xenon strobe tubes to facilitate
> ionization.  Not sure if that would be useful to the N2 laser triggered
gap
> folks.
>
> Cheers,
>
> Terry
>
>
>
>
>