The purpose of a power conditioning system for an HPM warhead is to adapt and transform the pulse obtained from the primary energy source to the requirements of the microwave source used. This usually means transforming a high current to a high voltage and shortening the rise time of the pulse. This is accomplished in the TTHPM system using an intermediate storage inductor, an electrically exploded wire fuse opening switch and a spark gap closing switch. The research on the TTHPM system is financed by the Swedish Armed Forces. This report summarizes the experiments with the pulse conditioning system TTHPM. The recorded currents and voltages are presented together with estimated energies and powers. The influence of parameter variations on the performance is analysed.