Re: Low Impedance Negative Resistance Tesla Coils

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: robert heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>

Ken: I service a cryogenic coil. It uses 9 gallons of L. nitrogen  per week
$100 and 6 gallons of L. Helium enery 4 months $200 just as it sits,  more
as it is used. I dont think the overhead would justify cryogenic coils as a
hobby.
    Robert    H
--


> From: "Tesla list" <tesla@xxxxxxxxxx>
> Date: Mon, 31 Jan 2005 07:18:35 -0700
> To: tesla@xxxxxxxxxx
> Subject: RE: Low Impedance Negative Resistance Tesla Coils
> Resent-From: tesla@xxxxxxxxxx
> Resent-Date: Mon, 31 Jan 2005 07:22:59 -0700 (MST)
>
> 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.
>
> Malcolm
>
>