Re: OLTC update - A problem!

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 8/28/02 10:24:06 PM Eastern Daylight Time, tesla-at-pupman-dot-com
writes:


>
> With 286 watts in I should be able to get streamers of 28 inches according
> to John's formula.  Much more considering I am not burning power in a spark
> gap.  But either the low frequency (I note that I am at the frequency of
> Greg Leyh's Electrum which seems to come in a little low for streamer
> length given the input power) 



Terry,

Congratulations on your results so far.  Regarding Greg's Electrum
coil, I seem to remember that it gave about the same spark length, 
as the break-rate was increased within a certain range.  Near the 
low end of the break-rate range, the coil was quite efficient.  I think
Greg said the coil gave almost the full spark length of 40 to 50 feet,
at 110 bps or so.  As he raised the breakrate, the sparks became
bushier and fuller, but not much longer.  I think it drew 40kW at
110 bps or so, and gave maybe 38 foot sparks.  This easily 
surpasses what my equation predicts.  This information is not
as Greg's website, and I may not have it 100% accurate, because
I gathered it from data in his various emails, but I think it's 
close, and if I'm correct, it suggests that Greg's coil is capable
of very high efficiency at the lower break-rates.  Maybe Greg
will comment further.

John