[Prev][Next][Index][Thread]

Re: Frequency Split



tesla-at-grendel.objinc-dot-com On Mon, 4 Mar 1996 09:31:18 +0700, you wrote:

>>From MALCOLM-at-directorate.wnp.ac.nz Sun Mar  3 15:12 MST 1996

>Hi everyone,
>             As promised, here is the list of frequency splits to
>achieve the "sweet values" of k (the coupling constant). 
[snip]
>
>   k     |   n   |   y
>-------------------------
>  0.6    |   2   |  1.63
>  0.385  |   3   |  1.5
>  0.28   |   4   |  1.33
>  0.22   |   5   |  1.25
>  0.18   |   6   |  1.2
>  0.153  |   7   |  1.167
>  0.133  |   8   |  1.14
>  0.117  |   9   |  1.125
>  0.105  |  10   |  1.11
>  
[snip]
Malcolm,
	I've seen frequency splitting on my scope while watching my TC
run, seen it in spice simulations but, I am not sure how to apply it.
I have also observed the effect of over coupling between my primary
and secondary; last night  6" arcs ran down my secondary and blew pits
into its winding:(   I deburred and recoated those sections today.
During the same run, I watched the secondary E field display itself as
a cone of corona between the top turn of my secondary and the strike
ring above my primary.  I had raised my toroid up only 1 inch and the
top turn of the secondary formed a corona to the strike ring.

Questions:

	1.	Why are you calling these K values sweet?
		Because they couple in an integer number of 
		cycles?

	2.	Once I've picked a coupling constant, do I use it
		for setting my spark gap commutation time?


	jim