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Re: secendary



Original poster: Sean Taylor <sstaylor-at-uiuc.edu> 

The diameter of the pipe has nothing directly to do with the number of 
turns - you typically want to aim for around 1200 or so turns, but you need 
to choose the correct winding length.  If you want an aspect ration of 
4.5:1 (what most people commonly use for coils), then you need to figure 
out what winding length you want to cover knowing the diameter.
Then, just multiply the wire diameter (inches/turn) and multiply by the 
number of desired turns (~1200 turns) and you end up with total length 
(inches).  For a chart of wire diameters, look in the archives, or search 
on google.  There used to be a drop down list on the JavaTC calaculator on 
the pupman site, but i don't know what happened to it!  Just make sure to 
account for the insulation thickness if you have heavy build wire, or 
something not standard.

Sean Taylor
Urbana, IL

On Sun, 23 May 2004 21:48:31 -0600, Tesla list <tesla-at-pupman-dot-com> wrote:

>Original poster: Jimbo07031982-at-aol-dot-com i am making a new secondary and was 
>wondering if someone could give the mathematical solution to figure out 
>what gauge wire i should use in order get x amount of turns for a given 
>diameter pipe