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 6220-00-901-2097
NSN 6320-00-194-4252
NSN 5910-01-319-7292
NSN 5910-01-224-1752
NSN 5925-01-545-0562
NSN 6130-00-596-7111
NSN 5998-01-142-3346
NSN 5990-01-324-7529
NSN 6650-00-738-5418
NSN 5975-01-306-1882
NSN 5990-01-649-4647
NSN 6645-00-406-8114