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 6650-01-120-6231
NSN 6150-01-132-5803
NSN 5999-01-069-3223
NSN 5990-01-626-2818
NSN 5960-00-421-1054
NSN 6240-00-827-0889
NSN 6650-01-024-9554
NSN 6135-01-611-7973
NSN 5975-01-608-3913
NSN 6620-00-120-0974
NSN 5985-01-382-5107
NSN 6110-01-013-9313