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 4140-01-620-1836
NSN 6645-01-242-0340
NSN 5895-01-451-4779
NSN 4140-01-246-4267
NSN 5920-01-056-5284
NSN 5996-01-304-1088
NSN 5910-01-530-6042
NSN 5935-00-553-3340
NSN 6150-01-495-6041
NSN 4140-01-290-5230
NSN 5990-01-324-7529
NSN 5895-00-473-6056