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 4140-01-500-3939
NSN 5895-01-489-5673
NSN 6240-01-025-5847
NSN 5999-01-397-6381
NSN 5975-00-073-4207
NSN 6105-01-004-7890
NSN 5950-01-264-6978
NSN 2925-01-330-2988
NSN 5855-00-763-2155
NSN 5835-01-336-1153
NSN 5999-00-133-3573
NSN 6220-01-347-4800