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 5996-01-307-2756
NSN 5835-01-478-0157
NSN 2925-01-586-9280
NSN 5925-01-592-3077
NSN 6105-01-296-7899
NSN 6145-01-044-8800
NSN 5915-00-368-4564
NSN 2925-01-425-7087
NSN 5925-01-560-9059
NSN 5998-00-243-5416
NSN 5930-01-595-5233
NSN 5935-01-154-1570