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 5950-01-051-5587
NSN 5990-00-906-4840
NSN 5910-01-093-1781
NSN 5996-00-038-8276
NSN 5998-00-269-5444
NSN 2925-01-540-4810
NSN 5960-01-552-0862
NSN 6130-01-247-7942
NSN 6110-00-781-1930
NSN 5998-01-589-4090
NSN 5975-00-127-4310
NSN 6135-01-651-7287