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 5998-01-128-1825
NSN 6620-01-477-3720
NSN 5999-00-421-2636
NSN 5915-01-549-4257
NSN 5950-00-546-3844
NSN 5895-01-578-1335
NSN 4140-00-519-2781
NSN 5835-01-449-7511
NSN 5975-01-508-3386
NSN 5950-01-298-3022
NSN 6220-01-318-4996
NSN 5985-00-338-2915