Re: Superconducting tesla coil...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Mddeming-at-aol-dot-com 

In a message dated 10/2/03 8:31:34 PM Eastern Daylight Time, 
tesla-at-pupman-dot-com writes:
Original poster: The MCP <ejkeever-at-comcast-dot-net>

But isn't keeping the resistance reasonably low the reason we use only up to
about 1500 turns on a given form? If there *is* no resistance, you can put 10
or 50 or 100 times as many turns on the same form, greatly increasing the
voltage output.

And wouldn't the high self-capacitance caused by the number of turns work to
one's advantage in such a coil, with no resistance to make it a mere nuisance
as in a normal coil?

Yes, but you still have L1C1=L2C2
If C1 is fairly fixed by the supply transformer size, increasing L2 by a 
factor of 100 and C2 by a factor of say 3, means L1 would have to be 300 
times larger to achieve resonance and
  Fres(new) = Fres(old) /sqrt(300). Such a coil would operate in the range 
of 5-10 kHz or less.
Since V(out) ~sqrt(L1/L2) it does not seem like there would be much voltage 
gain for all your trouble.

Matt D.