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 6620-01-471-4360
NSN 6620-01-523-4953
NSN 5960-01-307-2676
NSN 5985-01-317-7443
NSN 6220-00-262-7863
NSN 5998-01-545-8968
NSN 6105-00-105-0198
NSN 6240-01-364-1352
NSN 5975-01-611-7639
NSN 6135-00-347-0595
NSN 5999-00-980-1423
NSN 4140-00-469-2606