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 5960-01-599-9821
NSN 5925-00-054-4107
NSN 6145-01-231-4313
NSN 5935-01-005-6542
NSN 5935-00-439-8900
NSN 5910-01-156-7383
NSN 5935-01-388-8353
NSN 5998-01-318-7208
NSN 5996-01-445-5528
NSN 5990-01-626-3840
NSN 5996-01-391-7666
NSN 5975-01-550-9752