The 6633A DC power supply is a 100 watt single output system. This unit features low ripple and noise, and linear output regulation. This is also a "one box" solution, meaning it includes V and I readback. This item also has fast up-and down-programming. The output terminals can be floated up to +-240 Vdc from chassis ground. Up to two volts can be dropped in each load lead. Add 5 mV to the voltage load regulation specification for each 1-V change in the negative output lead due to load current change. The average time required for the output voltage to begin to change following receipt of digital data is 10 ms for power supplies connected directly to the HP-IB. The rise and fall time (10/90% and 90/10%) of the output voltage is less than 15 ms (400 us in fast mode). The output voltage change settles within 1 LSB (0.025% x rated voltage) of final value in less than 60 ms (2 ms in fast mode). Input power is 350 VA, 250 W at full load. 0-50V/0-2A/100W.