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 6320-01-227-2648
NSN 5990-00-510-2098
NSN 5996-00-925-1953
NSN 5965-01-058-6285
NSN 6130-00-753-7308
NSN 5996-00-132-4203
NSN 5920-01-600-5081
NSN 5950-01-491-1525
NSN 5975-00-275-1962
NSN 5990-01-221-0609
NSN 7035-00-079-7189
NSN 6645-01-565-2655