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 6650-00-411-7132
NSN 6145-01-033-6068
NSN 5930-00-727-5471
NSN 5998-00-423-7121
NSN 5950-00-136-3911
NSN 5925-01-421-4473
NSN 5996-01-495-0763
NSN 6130-01-367-8945
NSN 6620-01-302-3549
NSN 5945-01-359-8834
NSN 5855-01-429-8702
NSN 5950-01-231-4230