For example: Agilent E4440A or Anritsu 68369
TDK-Lambda Power Supply
TDK-Lambda SCR20-25-0V-0329-LB
SCR20-25-0V-0329-LB 20 V, 25 AMP, Power Supply
Manufacturer: TDK-Lambda
TDK-Lambda TCR10S50-2-0480
TCR10S50-2-0480 10 V, 50 AMP, Single Output DC Power Supply
Manufacturer: TDK-Lambda
TDK-Lambda TCR10S90-1-0329-0V
TCR10S90-1-0329-0V 10 V, 90 AMP, Power Supply
Manufacturer: TDK-Lambda
TDK-Lambda TCR10S90-1-0529-0V
TCR10S90-1-0529-0V 10 V, 90 AMP, Power Supply
Manufacturer: TDK-Lambda
TDK-Lambda TCR10T-500-4-0525-0V
TCR10T-500-4-0525-0V 10 V, 500 AMP, Power Supply
Manufacturer: TDK-Lambda