Re: Turns to secondary length ratio...

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

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