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 6220-01-198-3218
NSN 5930-01-576-9816
NSN 5996-01-265-5150
NSN 5998-01-379-1654
NSN 5855-01-176-9935
NSN 6685-01-134-7185
NSN 5990-01-527-7640
NSN 7035-01-038-3165
NSN 6135-01-329-7994
NSN 6110-01-556-4364
NSN 6220-00-013-9523
NSN 4140-01-398-0286