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 6685-01-145-7850
NSN 6645-01-154-9647
NSN 5935-01-431-9387
NSN 6685-00-001-4183
NSN 5835-01-208-1939
NSN 7035-00-890-7649
NSN 6105-00-015-5183
NSN 5855-00-631-4565
NSN 5855-00-058-1293
NSN 2925-01-255-6394
NSN 6610-01-106-5012
NSN 6320-01-173-7950