Hp Agilent 85101B Display / Processor is the display portion for the 8510B Network Analyzer. Unit is in great cosmetic condition.

Notes: Unit turns on with rear-panel "SERVICE" button switched. Ran all self-tests, #13 failed (probably due to no peripheral devices being attached.) Unit looks to be in good shape with a clear display. Calibration service not available, needs 8501 to perform calibration Option 010