Re: Wire length, coil geometry, and velocity factor

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

Original poster: "Malcolm Watts" <m.j.watts-at-massey.ac.nz> 

On 7 Aug 2004, at 18:18, Tesla list wrote:

 > Original poster: "Mike" <megavolts61-at-yahoo-dot-com>
 >
 > Hi all,
 >     In all of this discussion, has anyone looked at a
 > coil who's H/D ration is 0.3?   From what I have
 > calculated, the quarter wave frequecy would be very
 > close to the LC frequency at that geometry, with no
 > topload.
 > Mike

The two do converge with low h/d ratios as the coupling between all
coil turns approaches 1.

Malcolm