[TCML] charging reactors - Inductance formulas: maximum values

[Ed Phillips]

    The University of Illinois paper I mentioned earlier was by Brooks.  
Can't find my original but is there some other source?  He was pushing 
the possibility of air-core coils for 60 ~ power work, which of course 
has never happened.

Ed

"Brooks, who wrote a paper in 1931, calculated that the ideal value for 
the MEAN RADIUS is very close to 3c/2
where c is the sides of a square that revolves around a radius - eg a 
torus.
in other words the middle of the square former is the radius 3c/2
|<c>|         axis
|      |                    |      |
   |< 3c/2 >|

The shape is not absolutely critical as a fairly large % deviation from 
this shape will still have a large inductance....