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 6645-01-250-5154
NSN 6145-00-942-4254
NSN 5915-00-022-3496
NSN 6240-00-472-4635
NSN 5920-00-539-4168
NSN 5985-01-156-0165
NSN 5960-01-567-1096
NSN 6620-01-191-5934
NSN 6240-01-592-3176
NSN 5930-01-472-3953
NSN 6150-01-008-7723
NSN 5855-01-385-4234