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 6240-00-504-6583
NSN 6110-00-221-1868
NSN 6135-00-161-0746
NSN 6645-00-356-5705
NSN 5945-00-017-2645
NSN 5915-01-471-3487
NSN 5945-00-918-6874
NSN 4140-01-186-1952
NSN 6610-01-044-1860
NSN 4140-01-096-5722
NSN 5960-01-437-5318
NSN 7035-00-392-5417