Re: Research Project (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Tue, 22 May 2007 12:38:49 -0700
From: Frank <fxrays@xxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Research Project (fwd)

Making neon type tubes is a little harder that just sticking wires in glass.
You need special wire that will seal with the 
glass, typically either platinum or Dumet. 
Regular copper will not work. There should be 
some sort of electrode on the wire, not just a stub of wire.
Then you need a manifold to attach the argon and 
control the amount needed to back fill.
Lastly, as Dr. Resonance said, you need to 
bombard the tube to remove any entrapped gas 
before back filling. You can do this electrically 
or by controlled baking of the tube in a specific 
oven while under vacuum and then sealing the tube after filling.

One question, why argon? It requires a higher 
voltage to ionize. Neon is a much better gas as 
it will fire at a lower voltage and is easier to see.

For any interested, I have a copy of an early 
article on how to make a Geissler tube at home. 
It will give you an idea of how to make a vacuum 
tube. Of interesting note, they fill the tube 
with gasoline vapor and flash it off to outgas 
and lower the tube to the correct vacuum level. 
Not something you would do at close range!

Frank

At 01:05 PM 5/22/2007 -0600, you wrote:
>Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Tue, 22 May 2007 11:19:15 -0500
>From: resonance <resonance@xxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Research Project (fwd)
>
>
>
>You would also need a "bombarder" transformer to put 200-300 mA at 18-26 kV
>across the tube to blast any residual molecules off the walls of the glass
>tubes.
>
>Dr. Resonance
>----- Original Message -----
>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: <tesla@xxxxxxxxxx>
>Sent: Tuesday, May 22, 2007 10:34 AM
>Subject: Re: Research Project (fwd)
>
>
>Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Tue, 22 May 2007 10:39:21 -0400
>From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: Research Project (fwd)
>
>I wonder if it is possible to "make" a neon tube out of that meltible glass
>you get with chemistry stuff.  I would think so, you would just need to melt
>one end with a wire in it, suck the air out of it, backfill it with gas, and
>melt the other end.  Those glass tubes cost a few bucks a piece, and air
>conditioning compressor will serve adequately as a pump and can be obtained
>for free, snips of wire, and a tank of argon costs about $80 (unless you
>borrow one from a friend who gets free refills).  I'll have to try it, and
>if it works, what you could probably do for your research project, is set up
>several "receivers" for your transmitter, and see how distance effects them.
>   If I were a judge, I would be very impressed!  then what one might do, is
>try to hook up the output of your receivers to power bigger stuff (even if
>it does not work at all, you will have "learned something", sometimes judges
>like failures almost as much as successes in the scientific world).  Good
>luck.
>Scott Bogard.
>
>
> >From: "Tesla list" <tesla@xxxxxxxxxx>
> >To: tesla@xxxxxxxxxx
> >Subject: Re: Research Project (fwd)
> >Date: Tue, 22 May 2007 06:46:22 -0600 (MDT)
> >
> >Original poster: List moderator <mod1@xxxxxxxxxx>
> >
> >
> >
> >---------- Forwarded message ----------
> >Date: Mon, 21 May 2007 22:09:18 -0700
> >From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> >To: Tesla list <tesla@xxxxxxxxxx>
> >Subject: Re: Research Project (fwd)
> >
> >Now that sounds like a fun little thing to do at those 4th of July
> >bashes here in the US. Have little tubes of neon and pass around to
> >guest. See if they have fun with a little light wand while the coil is
> >running.
> >
> >Bart
> >
> >Tesla list wrote:
> >
> > >Original poster: List moderator <mod1@xxxxxxxxxx>
> > >
> > >
> > >
> > >---------- Forwarded message ----------
> > >Date: Mon, 21 May 2007 17:00:29 -0500
> > >From: resonance <resonance@xxxxxxxxxxxx>
> > >To: Tesla list <tesla@xxxxxxxxxx>
> > >Subject: Re: Research Project (fwd)
> > >
> > >
> > >
> > >Neon tubes are much more sensitive to RF currents than flourescent lamps.
> > >We use both neon and argon (blue) as accessories for our commercial coils
> >we
> > >market to science museums.
> > >
> > >Dr. Resonance
> > >
> > >
> > >this is Matthew Boddicker
> > >
> > >I have completed an experiment four months ago in which I used the Earth
> >as
> > >a transmission line from one "Transmitter coil" to an identicle "Reciever
> > >coil". The experiement was a success, in as much that it is possible, but
> > >all that the "Reciever coil" was able to do was to get a flourescent
> >light
> > >bulb to flicker. I have a twenty page paper on the research project that
> >I
> > >have been rewriting. if anyone is interested in getting it from me I can
> >get
> > >a copy to e-mail in two or three weeks. my e-mail is
> > >
> > >shmerpleton_town@xxxxxxxxxxx
> > >
> > >My best wishes to your research.
> > >Matthew
> > >
> > >
> > >
> > >
> > >>From: "Tesla list" <tesla@xxxxxxxxxx>
> > >>To: tesla@xxxxxxxxxx
> > >>Subject: Research Project (fwd)
> > >>Date: Mon, 21 May 2007 10:58:42 -0600 (MDT)
> > >>
> > >>Original poster: List moderator <mod1@xxxxxxxxxx>
> > >>
> > >>
> > >>
> > >>---------- Forwarded message ----------
> > >>Date: Mon, 21 May 2007 11:01:31 -0500
> > >>From: Drake Schutt <drake89@xxxxxxxxx>
> > >>To: Tesla list <tesla@xxxxxxxxxx>
> > >>Subject: Research Project
> > >>
> > >>Well summer is almost here and next year I will be a senior in high
> >school!
> > >>As seniors we are required to do an independent research project over
> >the
> > >>summer, putting a minimum of 40 hours into it, and following up next
> >school
> > >>year with a 15 page paper.  I see this as a perfect excuse to do some
> > >>coiling as i haven't had much time this year.  This is where I have
> >trouble
> > >>deciding where to go with this.
> > >>
> > >>My 12kv/90ma coil is nearing completion and I was thinking that I could
> >do
> > >>some sort of experiment with wireless power transmission.  I know it's
> > >>inefficient, but I recall someone talking about rigging up another coil
> >to
> > >>attach to a lightbulb which could be lit up from a fairly significant
> > >>distance.  I've researched this a bit but I can't really find anything
> > >>about
> > >>a recieving coil and light bulbs, so if anyone has info it would be
> >greatly
> > >>appreciated.
> > >>
> > >>I also love music and after looking at some audio modulated tesla coils
> > >>with
> > >>their "plasma speakers" I would love to build one.  The only problem is
> > >>that
> > >>I really have a limited knowledge of electronics outside of SGTC's and
> > >>SSTCs
> > >>seem like a whole different animal.  I'm not dumb, I just want to know
> >if
> > >>it's realistic to think that I can build a SSTC that can replicate this
> > >>plasma speaker effect over the summer.  I haven't seen anything about
> >these
> > >>audio coils on the list before, but I would bet that somebody out there
> > >>knows about them.
> > >>
> > >>Also, if anyone has any more ideas that involve HV and TC's that would
> >be
> > >>feasible to do over the summer, please reply!
> > >>
> > >>Thanks as always,
> > >>Drake Schutt
> > >>
> > >>
> > >>
> > >>
> > >
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> > >
> >
> >
>
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