Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> Up to 3.2 x Cres can be used only if synchro RSG is used. We use 1.3 x Cres with 60 mA NSTs and fixed sparkgaps. Dr. Resonance > of cap. So far the measured results agree with the simulation so Im > wondering if 4 * Cres would hold up during real operation.