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 5920-01-238-2174
NSN 5905-00-065-8594
NSN 5910-01-478-8132
NSN 6150-00-896-6753
NSN 5925-01-103-8322
NSN 6135-00-175-7132
NSN 6220-00-516-7174
NSN 5965-01-504-6139
NSN 6650-01-519-9165
NSN 5975-01-276-5228
NSN 5960-00-151-7573
NSN 5975-01-168-7643