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 6620-01-587-9533
NSN 6610-00-170-6715
NSN 5975-01-027-0253
NSN 2925-01-363-5978
NSN 5925-01-216-9888
NSN 5930-01-381-9514
NSN 5999-01-336-9016
NSN 2925-01-442-7812
NSN 6685-01-011-9089
NSN 5920-01-399-8740
NSN 5910-00-165-9333
NSN 4140-01-244-0548