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 5996-01-312-3508
NSN 4140-01-200-5032
NSN 5930-01-457-5245
NSN 6240-01-388-2413
NSN 6620-01-333-7014
NSN 5975-00-139-1427
NSN 5935-01-371-5175
NSN 5960-01-598-9072
NSN 5895-00-182-6327
NSN 6130-00-113-4558
NSN 5935-01-268-1071
NSN 5960-01-367-6153