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 6110-01-416-2644
NSN 5935-00-460-2166
NSN 5998-01-642-1957
NSN 5998-00-700-0590
NSN 6320-00-931-4855
NSN 4140-00-104-6843
NSN 5930-00-189-8672
NSN 2925-01-027-1293
NSN 6610-01-465-1320
NSN 6220-01-087-5115
NSN 6220-01-539-5242
NSN 6145-00-676-7691