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 4140-01-422-4431
NSN 6240-00-669-6652
NSN 5895-01-078-8827
NSN 6105-00-473-5559
NSN 6145-01-548-8854
NSN 5975-00-381-3850
NSN 6220-01-250-2376
NSN 5985-00-113-9638
NSN 6145-01-550-1477
NSN 6110-01-281-2067
NSN 6685-01-100-1672
NSN 5935-01-060-1174