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 6645-01-149-6849
NSN 6650-01-361-9336
NSN 5990-01-254-2936
NSN 5975-00-967-1270
NSN 6620-01-417-7040
NSN 5996-00-503-8499
NSN 5990-00-033-8128
NSN 5998-01-323-8534
NSN 5855-01-483-1350
NSN 6220-01-558-3212
NSN 6240-01-443-0519
NSN 5975-01-660-3892