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 6135-01-383-1910
NSN 6645-01-023-2180
NSN 5999-00-771-1387
NSN 5915-00-186-6490
NSN 6645-00-733-0667
NSN 5930-01-495-1059
NSN 5905-00-628-1301
NSN 6135-01-505-1293
NSN 6110-01-158-7878
NSN 6220-00-208-5454
NSN 5835-01-062-2235
NSN 5855-00-586-6255