The kit Minipuls 4 was developed for the generation of sinusoidal voltages in the range 5-20 kHz and amplitudes up to 20 kV peak (corresponding to 40kVpp or 14kV RMS). The kit consists of two boards: the full bridge board which is compleby low voltage and the high voltage transber cascade board. Power supply can be achieved with a standard laboratory power supply. Control is by external signal.