Subject: Re: Questions Questions Date: Wed, 26 Mar 1997 17:26:52 -0800 (PST) From: "Edward V. Phillips" <ed-at-alumni.caltech.edu> To: tesla-at-pupman-dot-com Re: "What is the k of the system while in operation? How can i check it?" Same k as when it's not in operation! What changes is the coupling factor kQ. Before sparking the secondary Q is high as is kQ. Once it starts to form a discharge the Q drops (way down). Ed Phillips