“…High-power, iron-core transformers do not have sufficiently fast charging times for reasonable turn ratios; moreover, their energy transfer efficiency is low.The principal disadvantages of the aut.otransformer from our point of view are the unproven reliability (e. g., for10 6 pulses) and the necessity of keeping the primary spark gap inductance small. Low inductance spark gaps can easily be made with solid dielectrics; if only a few shots are required, the dielectric material can easily be replaced after each shot.…”