Provides the bias voltages to operate microwave system amplifiers while allowing remote placement


The Keysight 87422A universal input, DC switching power supply provides bias voltages to operate Keysight microwave system amplifiers. Integrate these compact power supplies into a system or use standalone on the bench. This 90 watt, plus or minus 15V DC power supply powers the Keysight 83020A microwave system power amplifier. An additional plus or minus 12V DC output is provided to power a preamp such as the Keysight 83006A or 83017A. Included with the power supply are the necessary two-meter cables to connect to the amplifier.


  • Designed specifically for Keysight microwave system amplifiers
  • Bias cable permits remote placement
  • Compact size for easy system integration

DC Output Voltage/Current:

  • +15 V at 3.3 A, -15 V at 50 mA
  • +12 V at 2.0 A, -12 V at 200 mA
  • Output Power: 70 W, maximum

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