Re: Flat secondary measurements

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Paul -

I meant  average width is max, not minimum. Sorry about that. I transposed
thoughts (2nd time in two days).
I may need to add a pfc thingy to my brain if this keeps up (dislexic till
the end).

BTW, regarding the "I feel like a heel" post. Please dont, that wasn't my
intent. I have the highest
respect and admiration for you, your postings, and all the time and work
you have put into so many efforts.
The list been brought further out of the dark ages of myth and legend
because of you and several others
like you.

Take care,
Bart

Tesla list wrote:

> Original poster: "Barton B. Anderson by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
>
> Hi Paul -
>
> Tesla list wrote:
>
> > Original poster: "Paul Nicholson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <paul-at-abelian.demon.co.uk>
> >
> > Inductance Contest
> > ------------------
> > You have 426.72 metres (1400 feet) of 24 awg (0.51055mm diam) wire.
> >
> > What's the highest inductance you can achieve with it?
> >
> > Coils must be single layer, with concentric windings.  The minimum
> > allowable pitch is 0.6382 mm (0.025125 inches) which corresponds to
> > a spacing ratio of 0.8.
> >
> > Answers direct.
>
> My answer (right or wrong) is 32.7mH rounding turns to nearest integer, or
> when the inner radius is as
> close to zero as mechanically possible (I used .51055mm).
>
> Or when the average width is minimum. Everything is closer together, compact.
>
> Take care,
> Bart