Manufacturer: Hewlett Packard HP

Model: 8903B

Condition: Used. This analyzer is in Good cosmetic condition generally with two stand-out blemishes.  The right side steel case by the front panel is dented and cracked, and the right display has a scuff/gouge that does not penetrate the plastic (see photos).  There are also light scuffs/scratches here & there from previous use.  The 400Hz high pass filter label is missing. The photos show the exact item(s) the buyer will receive.

Notes: This analyzer is in Good working condition.  We used our own cables and other test equipment for testing, and these are not included. This 8903B powers on with no errors.  We ran the Basic Functional Checks (step 1-36) in the Operation and Calibration Manual (downloaded free from Agilent Technologies' website) and everything passed.  The output signal when used as a generator was a nice clean sine wave on our oscilloscope.  When we measured a signal from our generator, distortion went from <1% to >44% when we switched from a sine to a square wave.  We checked carefully to see what filter might be installed on the left button because the label has fallen off.  We found no attenuation above 500Hz, with an obvious corner (-3dB) at 410Hz.  The output is severely attenuated under 400Hz as expected with this filter.  No other testing was done. No manuals, cords/cables, or additional items are included if not listed or shown.

Included:

• (1) HP 8903B Audio Analyzer

Specifications:

• Manufacturer: Hewlett Packard
• Model: 8903B
• Audio Analyzer
• Range: 20Hz-100kHz
• Measures distortion, SINAD, signal-to-noise
• Measures true-rms ac volts, dc volts, frequency
• Low-distortion programmable source
• RMS, average, and quasi-peak detection
• Most measurements made with only one or two keystrokes
• Automatically tunes and autoranges
• Installed options:
  • Option 001 Rear panel (vs. front panel) High & Low Output & Input BNC connectors
  • 010: 400Hz High Pass filter (same as 050 but assigned to the left key)
  • 051: CCITT weighting Bandpass filter (same as 011 but assigned to the right key)

SKU: M16D003