Abstract
When a magnetically insulated vacuum transmission line is longer than the voltage pulse (or the rising portion thereof), steady‐state treatments are not adequate and some account of the time‐dependent terms in Maxwell’s equations must be taken to describe the propagation of the pulse. As a first step in studying this problem, an equivalent circuit model of the line is considered. Time‐dependent computer solutions are obtained and favorable comparison is made with both experiment and a recent analytic prediction for the front velocity.