Re: Turns to secondary length ratio...

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


The #30 heavy build (high temp) wire will give you very good performance in
a small coil.  1,200 turns will give a good inductance ratio multiplier for
output.

Happy sparkin'

Dr. Resonance

 >
 > Well, you said that you wanted 1200 turns.  #22 heavy build wire is about
 > 35.6 turns per inch so 1200 turns would require a winding length of 33.7
 > inches.  This would make a very tall, skinny coil, which is not the best
 > for performance.  #22 wire would work fine for say a six inch diameter
form.
 >
 > Ed Sonderman
 >
 > >Ic, so I am guessing #22 gauge is too big for a 3 inch coil?
 > >
 > >---Eric Urban
 > >----- Original Message -----
 > >From: "Tesla list" <tesla-at-pupman-dot-com>
 > >To: <tesla-at-pupman-dot-com>
 > >Sent: Friday, January 30, 2004 1:06 PM
 > >Subject: Re: Turns to secondary length ratio...
 > >
 > >
 > > > Original poster: Esondrmn-at-aol-dot-com
 > > >
 > > > In a message dated 1/29/04 5:28:49 PM Pacific Standard Time,
 > > > tesla-at-pupman-dot-com writes:
 > > >
 > > >
 > > > >Original poster: "Hydrogen18" <hydrogen18-at-hydrogen18-dot-com>
 > > > >
 > > > >How long should a 3 inch secondary be for 1200 turns?
 > > >
 > > >
 > > > Hydrogen,
 > > >
 > > > Well, if you wanted say a 5 :1 ratio of winding length to width, you
would
 > > > need to use a wire that is about .0125 diameter which is approximately
#
 > > > 29.5 guage.  So, using # 30 heavy build wire, diameter .0119" would
give
 > >us
 > > > a turns per inch of 84.  Assuming a winding density of 95% we get 79.8
 > > > turns per inch.  Times 15 inches we would have 1,197 turns.
 > > >
 > > > Ed Sonderman
 >
 >
 >
 >
 >