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 5945-01-136-1934
NSN 5935-00-480-2054
NSN 6620-01-413-7048
NSN 5910-01-356-0050
NSN 5960-01-658-9538
NSN 5975-00-960-5879
NSN 5910-01-266-4057
NSN 6620-01-388-8955
NSN 6220-01-225-6734
NSN 5935-01-347-8984
NSN 5920-01-131-0668
NSN 5930-00-982-2816