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 5998-01-038-7721
NSN 6240-01-573-3316
NSN 7035-01-530-8615
NSN 6135-01-008-4595
NSN 6620-01-202-1703
NSN 6220-00-987-1694
NSN 5998-00-553-9535
NSN 5835-00-012-1846
NSN 5895-01-230-0266
NSN 6110-01-044-7884
NSN 6685-00-894-3114
NSN 6620-01-082-7326