Original poster: "Eastern Voltage Research Corporation" <dhmccauley-at-easternvoltageresearch-dot-com> > However, as this is (for most of us) a hobby, I can see a strong appeal in > going for a "heritage" design, even if it can be out-performed by modern, > semiconductor-based designs. Yes, i do fully agree. I will still continue to build spark gap coils as well! Dan