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 5930-00-967-5619
NSN 4140-00-938-3307
NSN 4140-01-341-9184
NSN 5905-01-408-4572
NSN 5910-01-317-0456
NSN 5950-01-242-3277
NSN 6135-01-222-0703
NSN 6110-00-049-3628
NSN 6620-01-129-5832
NSN 6685-01-643-2827
NSN 5945-01-275-3080
NSN 4140-01-533-0611