Rohde schwarz hm8143 3593 0445k02 3 output programmable bench psu rohde schwarz 3593 0445k02 p the rohde amp schwarz hm8143 is a 3 output programmable bench power supply unit psu which incorporates high voltage current arbitrary waveform function electronic load and analogue programming p p the hm8143 provides 130w output power on three isolated channels with 2x 0 to 30v 2a and 1x 5v 2a with the ability to series connect or parallel these channels you can choose between high