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 6135-01-375-6724
NSN 6240-00-161-8099
NSN 6130-01-308-9390
NSN 5920-01-240-2362
NSN 5965-01-085-6158
NSN 6135-01-380-4396
NSN 4140-01-291-9342
NSN 5855-01-147-4785
NSN 6145-01-379-1168
NSN 5975-01-192-0147
NSN 6620-01-211-4098
NSN 5975-01-657-0529