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 4140-00-097-0167
NSN 5930-01-078-7612
NSN 5945-01-540-6588
NSN 5999-01-264-8560
NSN 6645-01-044-6376
NSN 5910-00-596-3179
NSN 6145-00-419-0550
NSN 5895-00-881-2156
NSN 6650-01-185-7896
NSN 5935-01-099-8357
NSN 6645-01-349-1631
NSN 5905-01-498-0365