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 5905-01-553-3164
NSN 5895-01-142-1785
NSN 7035-01-364-8454
NSN 6135-00-938-1351
NSN 6145-01-397-8526
NSN 5915-00-343-6814
NSN 5985-01-056-5179
NSN 2925-01-461-4347
NSN 6145-01-471-1823
NSN 5960-01-014-8073
NSN 6650-00-088-4741
NSN 6105-00-539-0393