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 4140-00-332-5956
NSN 5996-01-580-4604
NSN 5855-01-109-1807
NSN 5945-01-479-1235
NSN 5985-00-577-2920
NSN 6105-01-423-1417
NSN 6220-00-625-8554
NSN 6135-00-452-2266
NSN 5998-00-463-1990
NSN 6645-01-018-7664
NSN 6220-00-401-0704
NSN 5835-01-544-5183