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Re: Primary and Secondary?????
Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>
Mike, Nolan,
I suspect it is not widely known, but the concepts of critical
coupling, over-coupling, and frequency splitting are most applicable
to CW coils, and other radio type circuits, rather than to spark gap
systems. In a spark gap TC, there will indeed be frequency
sidebands created, but they are a
result of the decrementing waveform. It seems that any detuning
needed, is expressly for the purpose of compensating for "ion cloud",
or streamer capacitance effects. Spark gap TC's require a degree of
coupling that would always be considered to be overcoupled in
typical CW radio circuit parlance. Of course it is certainly true that
a too-tight coupling will result in flashovers and racing sparks.
John
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