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 6645-00-736-0476
NSN 6130-00-959-5800
NSN 5935-00-518-1072
NSN 5985-01-378-6823
NSN 6220-00-809-4497
NSN 5990-01-104-6703
NSN 6145-00-427-7201
NSN 5990-01-390-2177
NSN 2925-01-317-6973
NSN 6685-01-360-6765
NSN 5975-00-153-0050
NSN 4140-01-477-2771