Re: Blumlien HV generators

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: robert heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>

Gerry  Removing the shield dose nor solve the problem it abaits the problem
by removing the capacitance.  Let me explain traveling waves. They are
slower than the speed of light by 12% or more. I use a traveling wave
capacitor on my Nitrogen Laser. I have 4 capacitors 1/2 meter wide and 1
meter long connected to my discharge electrodes that run the length of the
Laser. Each capacitor is double sided PC board. I fire the laser at the
mirror end and the discharge travels the length of the Laser like a
discharge runs the length of a Jacobs ladder. When it gets to the end I have
1 mega watt of UV light to cause the mountain to fluorese. Dangerous yes,
but it works well. at my tungsten mine. When you send a pulse down a coax
cable the same thing happens. The problem comes into play when you consider
the cable's impedance is 50 ohms. If you try to match that you put a 50 0hm
short across your 10 Kv 30 ma transformer and nothing works other than you
smoke test your NST. By using the coax core with no shield the capacitance
is gone so the impedance is as high as is your transformer. I use coax core
for high xoltage wire and add additional vinal hose to the outside for
additional insulation. With silicon grease I can pull 10 foot lengths of
wire through tubing.;
    Robert   H
--


> From: "Tesla list" <tesla@xxxxxxxxxx>
> Date: Mon, 07 Nov 2005 16:59:05 -0700
> To: tesla@xxxxxxxxxx
> Subject: Re: Blumlien HV generators
> Resent-From: tesla@xxxxxxxxxx
> Resent-Date: Mon,  7 Nov 2005 16:59:46 -0700 (MST)
>
> Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Hi Dr R,
>
> Is the effect one of two I mention below?? or is it a third
> mechanism??  If it is a transmission line effect, can you explain why
> removing the shield fixes it and why proper termination
> doesn't???  If a resonant charging effect, can you descibe the L that
> the coax capacitance is resonanting with, the resonant frequency, and
> how this works???   If a third mechanism, I would like to challange
> you for the benefit of all the readers here to give a quick synopsis
> of this effect :o)).
>
> Knowledge is everything and sharing it is golden.
> Gerry R.
>
>
>
> Also is it
>> Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>
>>
>> These effects are well documented in Sargent & Dolan's book -- Power
>> Electronics.  Also covered are both strip line and circular HV
>> generators. Very novel designs.  It's out of print but I believe
>> that Bert Pool (Stoneridge Engineering) has some copies for sale.
>>
>>> Anyway, going to the intent of the original post,  I'm trying to
>>> understand the mechanism of voltage growth when using a shielded
>>> coax (not because I want to use shielded coaxes, but because I want
>>> to understand). Is the phenominum transmission line effects being
>>> underdamped while energy is feeding the line,  is it a resonant
>>> charging effect (series LC) due to the capacitance of the coax, or
>>> is it some other mechanism???  Also in the TC context, is the
>>> blumlein effect the same as the transmission line effect I
>>> described above or something else???
>
>
>
>