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 6130-01-127-5738
NSN 5910-01-365-7433
NSN 5965-01-506-7576
NSN 5999-01-549-0285
NSN 2925-01-330-2988
NSN 5996-01-347-5725
NSN 6685-00-477-2892
NSN 4140-00-379-4748
NSN 5975-00-492-1587
NSN 6220-01-193-6542
NSN 6220-01-542-2795
NSN 5855-00-821-7512