An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5930-01-236-5887
NSN 6620-01-355-8904
NSN 5920-01-142-1836
NSN 6650-01-027-3632
NSN 6610-01-156-0810
NSN 6610-00-276-8919
NSN 5925-00-813-6810
NSN 6150-00-964-7303
NSN 4140-00-017-2548
NSN 5998-00-534-7502
NSN 6650-00-862-7143
NSN 5930-01-430-4307