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 5950-00-788-9731
NSN 5925-01-506-0593
NSN 5835-00-155-1379
NSN 4140-00-625-9429
NSN 6145-01-502-6399
NSN 7035-01-495-5063
NSN 5996-01-054-3226
NSN 5925-00-209-0435
NSN 5960-01-388-1988
NSN 5915-00-905-1590
NSN 5999-01-515-0334
NSN 5998-01-445-8746