Re: Coupling Questions & coil measurements

Hi Ed,
         Not quite:

> Original Poster: Ed Phillips <evp-at-pacbell-dot-net> 

>     Note that, as k approaches zero, the two frequencies will approach each
> other closely, and the cycles to the magic time will be very large.  As
> k approaches 1 the separation between the frequencies increase until, at
> k = 1, one is at infinity and the other at zero.
> Ed

When k approaches 1, one frequency tends to infinity but the other 
tends to Fo/SQRT2  (derived from Fo/SQRT(1+k)). That is because the 
primary cap transformed by the inverse turns ratio squared appears in 
parallel with Cs (and the inverse also applies). The net result is a 
single frequency which is not Fo.