to the u.s. members on the tesla list,(was, sparklength)

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

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

i've seen some pretty impressive sparklengths from various systems
quoted in this thread and i'd like to congratulate all those who have
achieved
so much, well done, and to the help all you vetrans have so patiently
addressed to the newbies, this is truly a great mailing list and i'm proud
to be a part of it. i'll visit there one day but for now "god bless the
u.s.a."

regards
richard
aus.
(still working on my first 4"coil)







----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, January 22, 2004 1:59 PM
Subject: RE: Highest secondary to spark length ratio?


 > Original poster: "John H. Couture" <couturejh-at-mgte-dot-com>
 >
 >
 > John F. -
 >
 > I think I have the record now. Some time ago I put a one turn of 28AWG
wire
 > resonator coil beside my small magnifier TC and got a 6" spark at 80
watts.
 >
 > The ratio was 6.000/.0201 = 298. If I had upped the power to 100 watts I
 > could have gotten an even higher ratio.
 >
 > I agree that both the secondary and resonator should be used for this
 > comparison.
 >
 > John Couture
 >
 > -------------------------------
 >
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Sent: Wednesday, January 21, 2004 8:38 PM
 > To: tesla-at-pupman-dot-com
 > Subject: Re: Highest secondary to spark length ratio?
 >
 >
 > Original poster: FutureT-at-aol-dot-com
 >
 > In a message dated 1/21/04 6:40:39 PM Eastern Standard Time,
 > tesla-at-pupman-dot-com writes:
 >
 >  >"Among the finest of our systems was "Nemesis", a 14" diameter, 48 inch
 > tall
 >  >classic coil which regularly
 >  >produced 14 foot long arcs when operated near its maximum of 9kva input
 >  >energy.
 >
 >
 > Peter,
 >
 > The Nemesis coil gave sparks that were about 0.5 foot longer
 > than my formula predicts (using kVA).  Pretty much on the curve though.
 > The Nemesis was a very impressive coil due to the very large
 > toroid and high input power.  I used to enjoy seeing (and hearing),
 > that coil run.  I missed it when Richard dismantled it.
 >
 > Another superb Tesla
 >
 >  >coil system was Magnifier #11E which utilized a small 12 inch long, 3
inch
 >  >diameter resonator that produced
 >  >an astounding 10 feet of output arc with only 5-6kva input energy."
 >
 >
 > If we figure 6kVA, then the the predicted spark length using my
 > power vs. spark length formula is about 11 feet.  If we use 5kVA, then the
 > predicted spark length is 10 feet.  So the magnifier is less efficient
 > than the Nemesis coil.  Well my formula really uses watts, but VA is
 > close enough and keeps things standard for comparing with the
 > Nemesis coil.
 >
 >
 >  >Don't forget the Magnifier also is driven by the secondary as well and
is
 >  >not really equivalent.  I don't have the secondary details for Richard
 > Hulls
 >  >coil but even if his secondary was only 2 feet then the total coil
length
 > is
 >  >3 feet for a ratio of 3.3 which is not as impressive.
 >
 >
 > Yes, thanks for considering both the secondary and the resonator
 > combined, when figuring output spark lengths.
 >
 >
 >  >Bert Poole's magnifier has a 33" secondary and 24" resonator (total 57")
 > and
 >  >15 foot sparks.  For what it is worth that ratio is 3.1.
 >  >http://bhs.broo.k12.wv.us/homepage/chip/current/bpool/bpool2.html
 >  >
 >  >So far the best results I know of are from Ed at 3.77. Now about those
 >  >pictures..
 >
 >
 > I wonder if anyone has placed a 1" tall tiny resonator coil on top of
their
 > classic coil and called it a magnifier and then claimed a spark length of
 > of 100 times the resonator length or whatever?  Well maybe they should
 > put the 1" tall resonator at the end of a transmission line to satisfy
those
 > who fear
 > unwanted coupling between the secondary and resonator.  This is not an
 > original idea of mine, Malcolm and maybe others have spoken of this
 > 1" resonator approach years ago.  Has anyone tried this?  Who will
 > win the contest for spark length with highest multiples of the resonator
 > length?
 >
 > John
 >
 >
 >