For example: Agilent E4440A or Anritsu 68369
DC Power Supplies
Xantrex XPF 35/10MHV
DC Power Supply, 35 V, 10 A, 350 W, Dual Output, High Voltage
Manufacturer: Xantrex
Xantrex XPL 30/2T
DC Power Supply, 30 V, 2 A, 120 W; 5 V, 1 A, 5 W; Triple Output
Manufacturer: Xantrex
Magna-Power Electronics XR1000-2.0
DC Power Supply, 1000 V, 2 A, 2000 W, Programmable
Manufacturer: Magna-Power Electronics
Magna-Power Electronics XR1000-8
DC Power Supply, 1000 V, 8 A, 8000 W, Programmable
Manufacturer: Magna-Power Electronics