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 6220-01-123-1353
NSN 6320-01-370-4218
NSN 6645-01-487-7693
NSN 6145-00-729-9051
NSN 6110-01-132-9760
NSN 5996-00-410-8554
NSN 5855-01-278-8922
NSN 6135-00-321-6707
NSN 5935-00-176-0165
NSN 5985-01-362-3921
NSN 5930-01-384-1695
NSN 6610-00-227-8846