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 6240-00-733-2984
NSN 6220-01-649-5291
NSN 5965-00-110-3330
NSN 6620-01-048-4145
NSN 5930-01-397-2639
NSN 6685-01-025-7018
NSN 5855-00-198-3197
NSN 5910-01-181-2172
NSN 5905-01-483-1338
NSN 5925-01-246-9620
NSN 6685-01-329-2929
NSN 5935-00-891-1474