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 5930-01-400-4171
NSN 6150-01-063-5726
NSN 6220-01-650-6302
NSN 5999-01-488-7627
NSN 6135-01-320-9207
NSN 6610-01-481-0469
NSN 5925-01-555-3106
NSN 2925-01-436-7325
NSN 5960-01-196-3344
NSN 5945-01-012-2960
NSN 5925-00-004-4068
NSN 5990-00-145-1187