Re: Optimum turns on sec of classic type Tesla coil

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Hi Dr. Resonance,

Yes, I found Gary's performance parameters strikingly similar to my 
coil (but there is a difference). My h/d is 4.8 and Gary's is 3.1.

Dr, I haven't had a chance to do the power test on the NST yet (I'm 
in the middle of building a new driver for my Seibt coil), so that's 
something I still need to do.

For anyone wanting to see my coils spark pics, you can access them here:
http://www.classictesla.com/photos/ba45/ba45.html

Take care,
Bart

Tesla list wrote:

> Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>
>
> Bart was getting 58 inch sparks with 12/60 NST driving a 895 turns 
> #24 AWG coil on 4 inch ID PVC (4.5" OD) running with a 6 gap 
> stationary sparkgap and .0188 uF MMC (16 pcs in series).  That's 
> great performance!
>
> Sounds similar to yours only you are running 6.5 inch OD coilform.
>
> Dr. Resonance
>
> > I used #24 enamel coated copper wire.  I still have two 90 lbs 
> > rolls.  I used #24 only because I have lots of it.   It would be 
> > interesting to do the same experement using a different size wire.
> > I am not really sure the 900, 950, 1000 turns actually proves 
> > anything.   My book says 950 turns of #24 is 20.5 inches long.  A 
> > 6" PVC pipe measures about 6.625 inches on the outside 
> > diameter.  20.5 inches divided by 6.625 inches = a ratio of 
> > 3.094.   It could be the Diameter to Length ratio is the KEY to 
> > this experement not the actually number of turns on the coil.
> >
> > Vanderbelt University in Nashville Tennessee did a lot of research 
> > on Tesla Coils from about 1975 to 1982.  They claimed the best 
> > diameter to length ratio for any given TC is 3 to 1 ratio.   That 
> > puts my experement in the ball park.
> >
> > Gary Weaver
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > >From: Tesla list <tesla@xxxxxxxxxx>
> > >Sent: Jun 8, 2006 9:45 AM
> > >To: tesla@xxxxxxxxxx
> > >Subject: Optimum turns on sec of classic type Tesla coil
> > >
> > >Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>
> > >
> > >
> > >Gary:
> > >
> > >In your experiments, what AWG did you use in your 950 turn coil that
> > >seemed to work best?
> > >
> > >Dr. Resonance
> > >
> > >
> > >
> > >
> > >>I used the same guage wire on all the coils.   I only wanted to
> > >>change "ONE" thing in the system.   If you make 2 changes in any
> > >>.......