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 5920-00-004-6372
NSN 6320-01-567-9792
NSN 5925-01-501-8667
NSN 5905-00-660-6995
NSN 6685-00-008-7979
NSN 6130-01-111-3205
NSN 6620-01-423-7300
NSN 5930-01-087-8459
NSN 6220-00-352-8548
NSN 5855-01-288-2271
NSN 4140-00-627-1437
NSN 7035-01-240-0541