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 5935-01-440-9608
NSN 5925-00-064-2188
NSN 5950-01-105-5292
NSN 5960-01-317-3800
NSN 6150-00-144-7115
NSN 6130-01-555-7687
NSN 6105-01-263-8425
NSN 5935-00-954-3892
NSN 5965-01-659-7521
NSN 5945-00-281-4578
NSN 4140-01-286-0013
NSN 6110-00-837-2282