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 6650-00-420-2640
NSN 6320-01-229-6479
NSN 6685-01-629-4189
NSN 5835-00-665-3395
NSN 6685-00-936-2928
NSN 5965-00-246-5612
NSN 6135-00-603-4859
NSN 6620-01-342-0470
NSN 5915-00-532-7023
NSN 5920-00-730-8541
NSN 5930-01-400-6126
NSN 5895-01-045-1410