Re: Voltage determination

[Tesla729-at-cs-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

Bart, John,

I believe, like Bart said, that incresed L is a function of a larger and
longer secondary coil and naturally a physically larger coil can pro-
cess more power. To use a mechanical analogy, a Cadaillac Fleet-
wood will have considerably more momentum at 40 mph than a dirt
bike at the same 40 mph but obviously, it wouldn't be a very
good idea to install the motor of the motor-cycle into the Cadillac. 
Yes, the Cadillac can develop much more momentum than the motor
cycle but the motor from the dirt bike would not have enough power
to properly propel the massive automobile. Just the same, a 12/30 NST
with a 5 nF pri cap would  "drive" a 5 mH sec coil with ease but a
40 mH coil would be too "massive" for the 0.7 or so Joules developed 
by the 12/30 NST and 5 nF combo to properly "propel". I guess this is
a poor comparison, but maybe it does get my point across. The bottom
line is IMO I don't think increased L alone with no associated increase
in power will give a noticable increase in spark length, assuming all other
associated variables of TC design remain unchanged. 

My thoughts,
David Rieben