Re: Wire length

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Mddeming-at-aol-dot-com>

In a message dated 8/6/01 9:13:54 AM Eastern Daylight Time, tesla-at-pupman-dot-com 
writes: 


>
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" < 
> Organic97-at-aol-dot-com> 
>
> Dear people, 
> Am designing my first coil, could anyone tell me the address of the site 
> that 
> will enable me to calculate the amount of wire I'll need. Thank you! 
> Jesse Schwartz 
> Berkeley 



Hi Jesse, 
There are many sites with answer to your question. A fairly comprehensive 
list of wire from bare to quad-thickness, insulated magnet wire can be found 
at: 
www.mwswire-dot-com/insdia1.htm 
This table gives not only the nominal size, but also the manufacturing 
tolerances. 
For a given coil, the wire length is X=pi*D*N*T where D is the actual coil 
diameter in inches, N is the number of turns, T is the thickness of wire in 
inches (from table). The height of the completed coil winding will be N*T 
inches. You can add about 2-5% for the "Ohcrap" factor.;-) 

Matt D.