Re: winding turns on 6" secondary

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

Original poster: "Ben McMillen by way of Terry Fritz <twftesla-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>


Or simply stated: 

# of turns = TPI * Winding Length 

  

Coiling In Pittsburgh
Ben McMillen 

  Tesla list <tesla-at-pupman-dot-com>
>
>  wrote:  
> Original poster: "by way of Terry Fritz " 
>
> In a message dated 4/3/02 10:19:03 AM Eastern Standard Time, tesla-at-pupman-dot-com
> writes:
>
>
>
>
>
> > 
> > hi all 
> > im about to start my secondary and was wondering how many turns of 
> > wire 
> > i should be aiming for im going for a winding length of 30" 
> > 
> > thanks 
> > colin heath 
> > 
> > Hi Colin
>
> ,
>
> If you are doing a close-wound coil, then by fixing your length and the 
> diameter, the number of turns is exactly determined by the wire gauge and 
> insulation thickness (build). If you are doing a space-wound coil, then the 
> spacing determines the number of turns. Coils of 400-2000 turns are not 
> uncommon, but most people aim for 800-1500 as a good compromise for a first 
> coil. 
> Matt D.