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Re: 2 wire secondary

Subject: 
           Re: 2 wire secondary
      Date: 
           Tue, 15 Apr 1997 05:07:22 -0700
      From: 
           Gary Weaver <gweaver-at-earthlink-dot-net>
        To: 
           tesla-at-pupman-dot-com
References: 
           1


-----------------------
> 
> Subject: Re: 2 wire secondary
> Date: Mon, 14 Apr 1997 16:48:04 -0700
> From: Gary Weaver <gweaver-at-earthlink-dot-net>
> To: FutureT-at-AOL-dot-com
> References: <970414105248_-1402673407-at-emout09.mail.aol-dot-com>
> 
> FutureT-at-aol-dot-com wrote:
> >
> > >big SNIP
> > > The 2 wire secondary coil output sparks are hotter and longer than the
> > >coil wound with 1 wire.  2 #24 wires in parallel should
> > > be about equal to a coil wound with #20 wire.
> >
> > > Gary Weaver     Experement 7927
> >
> >   >>
> > Hi Gary,
> >
> > Did you maintain a constant k (coupling) factor throughout all these tests.
> 
> Both coils are wound exactly the same physically.  The 1st turn of both
> secondary coils lines up on center with the flat primary coil.
> 
> 
> >  Also, it would have been interesting to have added even more turns to the
> > primary to permit tuning with the large toroid with the 1 wire secondary.  I
> > have sometimes obtained misleading results in certain kinds of tests, because
> > things were changing other than what I was trying to measure.
> >
> > Here's an experiment you may want to try.  Set everything up for the ~12"
> > spark; large toroid, 2 wire sec, etc., tune for best spark.  Then carefully
> > remove one of the wires on the secondary, leaving behind the other wire which
> > will now be "space-wound".  Now, since k, number of pri and sec turns, etc,
> > are still about the same, this will be a reasonably true test of the effect
> > of the secondary wire resistance (you may have to retune a little for best
> > results?).   I haven't tried this test, but I'll guess that there would be
> > little, or no change in spark length and brightness.
> >
> > Another test would be to wind a secondary with the same number of turns,
> > using one thicker wire (# 18) which is equal in thickness to two of the wires
> > you used.  This will result in an ever lower secondary resistance, but again,
> > spark length will probably be about the same I would guess.
> 
> Someone on the list told me lower secondary coil wire resistance and
> coil reactance will produce better output sparks from the secondary coil.
> Every test I have tried so far has proved this to be true.
> 
> >
> > Towards optimal coiling,
> >
> > John Freau