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Re: Frequency Split
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Frequency Split
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From: jim.fosse-at-bdt-dot-com (Jim Fosse)
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Date: Sun, 17 Mar 1996 07:03:17 GMT
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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