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 6610-01-047-1299
NSN 5998-01-006-1659
NSN 2925-01-333-6017
NSN 5999-01-032-4340
NSN 5935-01-084-3001
NSN 5930-01-153-9574
NSN 4140-01-350-3277
NSN 6240-01-452-0379
NSN 6110-00-941-6143
NSN 6685-01-310-1552
NSN 5920-01-616-3401
NSN 6650-00-866-9947