CEC designs and manufactures high voltage DC power supplies (HVPSs) that can be customized to meet virtually any requirements. Our HVPSs feature high precision and conversion efficiency (greater than 90%, AC to DC) and can be used as modulators in transmitters using high power vacuum tetrode (power grid) tubes, and as beam power supplies for gyrotrons, IOTS (Inductive Output Tubes), klystrons and magnetrons.