Re: Tesla Coil Experiments

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <induction@xxxxxxxxxxx>

Hi George,
                   If you pump that thing down to 100 -150 Millitorr, even 
at 6 feet length, you will not need a TC to drive it directly. Using just 
room air, We have a 22.5 inch ID version that is 73 inches tall, counting 
the end seals. It ignites glow mode across the ~ 6 feet at 1100 volts and 
like any tube, you need to ballast it. I use series inductor in primary of 
transformer and once it's going, I can pull a 4.25 amp discharge with 180 
volts drop across the ~ 6 feet length. I can do 10 amps on the supply or up 
to  2600 DC but it's pointless, just makes the room brighter and the 3 
phase meter turn faster.
That is no fancy gas, just air.
If you try a TC on it, you will find it will try to pull infinite current 
voltage driven but the TC cant supply the current.
I know somebody that was trying to run 15 KV at 1.5 amps  into a like tube, 
it was way too much, over volting like crazy. 1100 at most to start, then 
glow 900 and lower, with reduced currents. You have 3 modes, dark, cold 
plasma, glow discharge mode and arc discharge mode (thermalized).
We use the glow discharge mode for Sprite study work.
Mike

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, July 06, 2005 2:03 PM
Subject: Tesla Coil Experiments


> Original poster: "GEORGE STEIN" <afa2fg@xxxxxxx>
>
> Good morning,
>   Several years ago, I bought a 3 inch by 6 foot clear acrylic tube. I 
> sealed one end with a flat piece of acrylic and put brass acorn nuts on 
> both sides of the flat piece ( electrically connected). On the other end 
> of this pipe, I put another piece of flat acrylic with a 1/4 inch I.D. 
> copper pipe glued thru a hole in this piece. In other words, I can attach 
> a vacuum pump to the copper pipe and evacuate the tube. I had spoken to 
> someone about making a "lightning tube" using this tube, but have since 
> lost the email. I seem to remember him telling me to evacuate the tube 
> and then back fill with neon or other gas and seal the tube. When 
> supported near my TC, it would supposedly conduct thru the gas and show 
> "lightning". Am I on the right path??? Can someone steer me in the right 
> direction on this project??? Maybe off-list since this might be a little 
> off-topic ??? I'm just looking for some interesting things to do with my TC.
>
> Thanx
> George Stein
> Bedford, Va.