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 5930-01-224-7917
NSN 5925-01-229-7536
NSN 6150-01-499-1630
NSN 5925-00-003-4722
NSN 6685-01-487-3988
NSN 6240-01-394-6339
NSN 6240-00-133-7726
NSN 6145-01-574-7088
NSN 6650-00-599-9509
NSN 5990-01-127-4853
NSN 5935-01-103-1188
NSN 5960-01-523-9098