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 5925-01-152-1188
NSN 5975-00-977-9257
NSN 6650-01-539-9580
NSN 6240-01-134-2419
NSN 6240-01-149-1428
NSN 5855-01-469-7732
NSN 6145-00-136-9132
NSN 6240-01-462-1874
NSN 5950-00-399-1037
NSN 5996-01-544-6853
NSN 5895-00-556-8789
NSN 6320-01-411-7456