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 4140-01-318-7540
NSN 5905-01-419-4297
NSN 5920-01-232-8497
NSN 5915-01-288-8456
NSN 5935-00-458-8409
NSN 6150-00-753-3950
NSN 6620-01-515-9597
NSN 6240-01-422-1356
NSN 5996-01-167-9234
NSN 5855-00-237-4088
NSN 6135-01-226-4071
NSN 6650-01-381-1359