Re: K formula?

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

Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz <teslalist-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>

Tesla list wrote:
 >
 > Original poster: "Peter Lawrence by way of Terry Fritz 
<teslalist-at-qwest-dot-net>" <Peter.Lawrence-at-Sun.COM>
 >
 > Is there a formula for the K (coupling coeff) given that I know the two
 > resonant frequences that the combined primary plus secondary have.

Given the frequencies F1 and F2>F1:
k=(F2^2-F1^2)/(F1^2+F2^2)

 > at 0"   193.42  and  216.10  KHz resonances,  22.8 Hz appart
k=0.1104

Antonio Carlos M. de Queiroz