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Re: [TCML] Q



Antonio Carlos M. de Queiroz wrote:

resonance wrote:



It's the primary Q that must be high. Richard Hull proved long ago that even a small "resonator" coil in a 3 coil system, the resonator was approx 4 inches x 34 inches, and was producing 11 ft long sparks, so the Q factor of the sec coil is really not that important.

Rich is not active on the list but I think Dave Sharpe may have some of this data.

An analysis of the linearized system shows that the effects of primary and secondary Qs are exactly the same. For example, a system with primary Q = 100 and a lossless secondary and another system with a lossless primary and a secondary with Q=100 produce the same output waveform. This is also valid for any other combination of Qs.

Antonio Carlos M. de Queiroz

That should be obvious. Question: What is the effect of Q on streamer length assuming reasonable quenching. In other words, other than for bragging rights, how important is it to create a high Q secondary? How much Q is "good enough"?

Ed

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