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 6110-01-173-6221
NSN 6685-01-316-7855
NSN 5935-01-123-7145
NSN 5999-01-065-4410
NSN 5965-01-376-1012
NSN 2925-01-513-9114
NSN 6645-01-337-1806
NSN 5999-00-525-4320
NSN 6220-00-740-1271
NSN 5930-01-426-9130
NSN 4140-01-168-8796
NSN 4140-00-822-4447