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 5835-01-346-1386
NSN 5920-01-607-4346
NSN 5975-01-477-7237
NSN 6610-01-549-4960
NSN 6240-01-420-5905
NSN 5998-01-622-8751
NSN 5920-01-582-5967
NSN 6150-01-408-6144
NSN 5915-01-456-9884
NSN 4140-00-991-0766
NSN 4140-01-394-6982
NSN 6145-00-171-3152