RE: [TCML] 40AWG secondary coil

[<sparks@xxxxxxxxxxxxxx>]

> Since TeslaMap didn't have a 40AWG option for secondary wire,
> I had to do my own calculations -
>
> Using a wire diameter of 3.14 mils to represent the diameter
> of the 40AWG wire, I divided '1' by '3.14' and multiplied by
> one-thousand so that the number would be how many winds per
> inch, instead of winds per mil. I took that number and
> multiplied it by '7', the intended number of inches for the
> secondary's windings in length; I came to the answer of
> 2229.29 winds in seven inches, with a height:diameter of
> 1:4.66(etc.), which is acceptable for small coils.

The ARRL Handbook copper wire table says that #40 enameled wire should
give 282 turns/inch.  Figuring 280 TPI for a calculations, that's about
1960 turns.

73,

Ralph   W5JGV - WD2XSH/7

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