For example: Agilent E4440A or Anritsu 68369
Keysight / Agilent AC Power Supplies
Programmable AC Power Sources, Frequency Converters
Keysight / Agilent 44405A
19 Channel Reference Assembly with Thermocouple Compensation
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Manufacturer: Keysight / Agilent
Keysight / Agilent 6812B
Agilent 6812B AC Power Source / Power Analyzer, 750 VA, 300 V, 6.5 A
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Manufacturer: Keysight / Agilent