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 5920-01-442-8998
NSN 5996-00-711-7962
NSN 5999-01-130-1641
NSN 5999-01-004-1500
NSN 6135-01-095-5921
NSN 6685-01-626-6597
NSN 5855-01-268-6468
NSN 5910-01-559-8188
NSN 5920-00-455-1050
NSN 5905-01-372-1950
NSN 6620-01-181-1757
NSN 5935-01-179-1572