A professional who inspects and tests sample phonograph records, using optical instruments and audio equipment. Responsibilities include:

• Inspects record for defects, such as bumps, stains, or scratches.
• Compares number imprinted on record with serial number on label to ensure correct labeling.
• Places record on turntable and guides calibrated microscope over revolving record, observing movement of off-center line of record, to determine if groove centering is within specified tolerances.
• Plays record on sound-producing equipment, listening for defects, such as pops, ticks, or distortion, and to verify that selections on record conform to printed label.
• Notes defects and returns record to pressing department.