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 6610-01-370-3886
NSN 5910-00-517-0063
NSN 5996-00-401-4904
NSN 5999-00-475-0462
NSN 6645-01-128-0895
NSN 5998-01-257-8385
NSN 6320-00-857-4073
NSN 5920-01-025-5863
NSN 5895-01-387-0972
NSN 6620-01-003-2905
NSN 2925-00-101-7972
NSN 5945-00-006-1374