An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5975-01-104-0140
NSN 6320-00-115-0883
NSN 5990-00-150-6979
NSN 5996-00-426-7370
NSN 5835-01-364-6830
NSN 5950-01-184-3483
NSN 5905-01-212-1232
NSN 6220-01-417-3330
NSN 5950-01-298-2308
NSN 5975-01-484-1217
NSN 6220-00-244-2552
NSN 6320-01-643-0850