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 5998-01-325-7817
NSN 5975-01-471-4296
NSN 6110-01-493-4216
NSN 5950-01-143-5419
NSN 5935-01-658-6984
NSN 6130-01-616-8072
NSN 5920-01-562-3870
NSN 2925-00-010-9609
NSN 5895-01-185-2981
NSN 5930-00-493-7589
NSN 6150-01-304-6645
NSN 6645-00-371-1861