HP Agilent Keysight 6200B DC Power Supply (40V/.75A or 20V/1.5A)

HP 41425A V Analog Feedback Unit Module Agilent for 4142B

HP Agilent Harrison 6204B Dual Range Single Output 40v Power Supply Tested

HP/Agilent 41421B Source/Monitor Unit for 4142B Mainframe, 40uV-100V/20fA-100mA

HP 41421B : Voltage Source / Monitor Module, AS-IS (1827)

HP Agilent 6205C Dual 0-20V/0.6A, 0-40V/0.3A 0.10-Turn Pots DC Power Supply

Agilent HP Hewlett Packard Model 6632A DC Power Supply 0-20V / 0-5A 100W Tested

Agilent 4142B Modular DC Source #10 [#A307]