Re: Formulas

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

Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-uswest-dot-net>" <bigfoo39-at-telocity-dot-com>

Tesla list wrote:

> Original poster: "Jason Johnson by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <hvjjohnson13-at-hotmail-dot-com>
>
> Does anyone have a formula for calculating the AWG size of a wire from the
> diameter (preferably in inches), and/or a formula for the number of turns per
> inch based upon the AWG? I need these formulas for an excel spreadsheet
so the
> simpler they are the easier it is for me to put them in. They need to have
> fairly good accuracy (+/- 1% or less). Also I haven't really looked
around for
> them yet, but if anyone has any formulas for inverse conical (saucer shaped)
> primaries I could use those too.
>
> Jason Johnson

Hi Jason....

what you are asking for is nearly impossible...   the AWG size of wires
produced by the professionals are
at an accuracy of 5% for common usage. In certian cases, there are
situations in which the manufacturer
will design and release wire at 2% accuracy but the cost is for groups of
buyers like NASA, the armed
forces, and anyone else who can spend a fortune.

Also it seems that each major manufacturer has its own standards for the
AWG compared to wire dia.


Scot D