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 4140-01-576-9310
NSN 5925-01-004-9293
NSN 5905-00-021-3352
NSN 5945-01-446-1707
NSN 5935-00-519-0281
NSN 6650-01-481-3618
NSN 6150-00-843-5905
NSN 5950-01-172-2455
NSN 6105-01-073-6398
NSN 6135-01-271-7151
NSN 5990-01-191-9624
NSN 6685-01-527-1092