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 5925-01-453-1110
NSN 5990-01-321-2997
NSN 6220-01-596-3176
NSN 5910-00-508-2667
NSN 6320-01-382-9676
NSN 6650-01-166-5025
NSN 5895-01-065-8704
NSN 5998-01-255-0814
NSN 6110-01-122-2411
NSN 6150-01-247-8770
NSN 6110-00-809-1401
NSN 2925-00-233-5644