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Re: [TCML] 5" Sparks - Approx 35 watts input power: Tesla was correct!

I understand what you're saying.  What about the low power TC contest  that 
Gary Lau set up?
I think those coils were limited to about 50 watts or so?  Some  had some 
shunts removed from
the small transformers, some didn't.  I forget all the details but I  think 
someone got about
13" sparks.  I'm not sure of the exact power they were using to  achieve 
that.  Most of the
coils gave at least 6" sparks I think.  I think the contest is still  set up 
at Gary's website.
Most of the coils were not made in the old styles from Tesla's day  however.  
some of the things that were discovered during that contest could be  applied 
to making
an old style coil.  I think of the keys was to use a rather over-sized  
toroid, which would
not be in keeping with the old style appearance however.   
In a message dated 3/12/2008 6:27:29 P.M. US Eastern Standard Time,  
electrotherapy@xxxxxxxxxxx writes:

My point of this was a while back when everyone was getting  fed up with the 
"wireless transmission" posts.My argument was in general to  try and recreate 
some of Tesla's work that is achievable - like anefficient  table top coil as 
those Tesla made in the 1890s.  There was a lot of neat  patents and 
conceptsthat came from that period, and all of them are "on topic"  and relating to 
"Tesla Coil" construction.

The result was more or less  a bombarding of posts regarding how authentic 
Tesla's statements  were,suggesting the claims were exaggerated/etc.   Several 
people  mentioned ignition or induction coils withthose efficiencies, which I 
agree  are completely possible, but I am interested in Tesla Coils,resonant 
circuits  with high efficiencies.  Something like we normally build, but low  
power.I know with your brilliant work in modern Tesla Coil circuitry that for  
sure these claims are easilyobtained if Tesla could do it with archaic  
technology.  I would love to see it though from someone,because I think  it may offer 
some interesting designs and creativity.
Its an unusual  request to group of people normally making huge sparks.  The 
35 watts is  irrelevant to me,
I was hoping just to see some responses of low power  (less than 75 watts) 
and efficient Tesla Coils (4 - 6" sparks?) made by people  on the list.  As much 
as there is a fine art in making huge sparks, I  think thereis an equal 
opportunity of creativity in making smaller, more  efficient machines too.  Surely 
something can belearned from  it...?

Jeff Behary> > Peter, Jeff,> > I agree with what  Peter says below. Also I 
don't understand why anyone> would consider it  difficult to produce a 6" spark 
using 35 watts even for a > normal> type  of tesla coil (non-kicker type). 
Using my formula:> > spark length  inches = 1.7* sqrt input watts (wallplug)> > 
gives a result of 10" for  35 watts. However small coils seem to give shorter> 
sparks than the formula  suggests, so perhaps the spark would be about > 6" or 
7" long.> >  Cheers,> John> 

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