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 5910-01-450-2008
NSN 6240-01-437-9439
NSN 5920-01-022-8106
NSN 6645-00-183-8812
NSN 5835-01-061-9434
NSN 6145-01-342-4689
NSN 5998-01-559-2429
NSN 5915-00-681-6299
NSN 5920-01-563-4315
NSN 2925-01-537-2069
NSN 6150-01-084-7783
NSN 5935-01-498-1503