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 5990-01-089-9694
NSN 6320-01-544-6447
NSN 5855-01-266-1645
NSN 6150-01-036-3660
NSN 6650-00-479-9329
NSN 5950-00-952-1569
NSN 5930-01-407-2572
NSN 5835-01-363-4527
NSN 6130-00-144-0976
NSN 6105-01-292-0074
NSN 6685-01-193-4125
NSN 6105-01-478-6400