For example: Agilent E4440A or Anritsu 68369
Keysight / Agilent Power Supply
Keysight / Agilent 6110A
3000 V, .006 AMP, High Voltage Power Supply
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Manufacturer: Keysight / Agilent
Keysight / Agilent 6177B
50 V, 500 mA, Constant Current Power Supply
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Manufacturer: Keysight / Agilent
Keysight / Agilent 6515A
1600 V, 0.005 AMP, High Voltage DC Power Supply
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Manufacturer: Keysight / Agilent