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Re: Low Impedance Negative Resistance Tesla Coils

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

Assuming the high current pulses didn't kill the superconductive state of the wire (superconductos don't carry infinite current, after a point they stop superconducting and quickly incinerate/explode if the wire is small). Problem is on primaries the current pulses are usually rather high. Also, the cooling systen would eat much more power than it saves in the coil itself.

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, January 31, 2005 9:18 AM
Subject: RE: Low Impedance Negative Resistance Tesla Coils

Original poster: "Ken Jenkins" <thecompman@xxxxxxxxxxxx>

Just a Thought..
What if you used super conductive wire to build your Primary & Secondary
coils, Solenoid wound secondary close coupled. Then put the whole thing in
Liquid helium or nitrogen...
Wouldn't this give you a coil with virtually no resistance??
Like I said
Just a thought..
Ken J.

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Sunday, January 30, 2005 3:01 PM
To: tesla@xxxxxxxxxx
Subject: Re: Low Impedance Negative Resistance Tesla Coils

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 28 Jan 2005, at 11:51, Tesla list wrote:

 > Original poster: stork <stork@xxxxxxxxxxxxxxxxxxx>
 > I have often been struck by the theoretical implications of negative
 > resistance in regenerative antennae and have wondered about their
 > application to TCs.  It would be attractive to design a TC coil where
 > DC resistance is eliminated and 100% of input power  is devoted to
 > output reactive power only.  Apparently this concept was not lost on
 > Tesla as he wrote about it over a year ahead of Armstring and his
 > early regenerative oscillators.  Further thought suggests easy
 > application to CW tube TCs and even solid state TCs which have caught
 > our fancy and seem to be the rage of Tesla coiling currently.  And,
 > rightly so.
 > http://www.tfcbooks.com/articles/tws5.htm
 > stork

Regeneration requires the use of a power supply to overcome the real
loss so in terms of power spent you actually only gain a further
inefficiency. This is quite different to increasing the collecting
power of an antenna.