Re: Need Formula for length of spiral

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

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

correction: The quarter wove length of a conductor is not the free space
quarter wavelength.IT is 6 to 15% less than free space controled by Z of the
coil or conductor.
   Robert  H 

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Wed, 13 Feb 2002 21:42:18 -0700
> To: tesla-at-pupman-dot-com
> Subject: RE: Need Formula for length of spiral
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Wed, 13 Feb 2002 21:44:56 -0700
> 
> Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <dave-at-volantis-dot-org>
> 
> Hi John,
> 
> If you are going to wind a spiral coil with no inner radius, the wire length
> is simply the circumference at the average radius times the number of turns.
> If you are trying to figure the wire length according to quarter wave, you
> make the wire length one fourth of the wave length.
> 
> Dave
> 
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Wednesday, February 13, 2002 5:46 PM
> To: tesla-at-pupman-dot-com
> Subject: Need Formula for length of spiral
> 
> 
> Original poster: "John Tomacic by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <tesla_ownz_u-at-hotmail-dot-com>
> 
> Hi everyone,
> 
> Does anyone have a formula that I can use to calculate the length of wire
> required in a flat spiral coil? I have the formula for inductance, however,
> I really need the wire length.
> 
> Thanks,
> 
> John
> SST coiling in Ottawa.
> 
> 
> 
>