Rohde schwarz hm8040 3 3593 0800k02 3 output bench psu rohde schwarz 3593 0800k02 p the rohde amp schwarz hm8040 3 3593 0800k02 is a 3 output bench power supply unit and part of the series 8000 modular system it is especially suited for powering test circuits in schools in training in service departments and laboratories the hm8040 3 uses linear regulators and delivers three independent voltages with a total power output of approx 25w p p the hm8040 3 offers low ripple linea