Circ 74 - RE: Calculating inductance of flat spiral coils

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

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Dave,

Although they are "rough" and could use a nice clean up and PDF conversion.
 Raw scans of the thing in TIFF format are at:

http://hot-streamer-dot-com/TeslaCoils/OtherPapers/Circ74/

I think Ralph sent it to me (?) and I quickly scanned it just to capture
it.  I forget the details but...  It needs work but it is there.

Cheers,

	Terry


At 08:46 PM 2/15/2002 -0600, you wrote:
>Hi Steve,
>
>Thanks for posting these links.  The effort is appreciated.  I have tried
>the formula in these links.  This is the standard flat spiral coil formula
>that works fine for a primary.  But it doesn't work very well for a larger
>flat spiral.  Ed has mentioned a circular from NIST that contains more
>complex formulas for flat spiral coils, but I couldn't find it online or how
>to order it.  Maybe Ed can post the formulas online so we can see them?
>
>Dave
>