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 6240-01-555-8649
NSN 5915-00-467-1585
NSN 5920-01-540-9937
NSN 5920-00-391-6252
NSN 5920-01-299-8404
NSN 5910-00-658-3409
NSN 6650-01-254-4745
NSN 5925-01-188-7630
NSN 6610-01-374-9048
NSN 2925-01-242-2309
NSN 5975-01-464-4293
NSN 5965-01-282-4587