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 6150-01-025-9766
NSN 6685-00-848-6353
NSN 6240-01-034-0436
NSN 5925-00-078-9566
NSN 5965-01-072-3156
NSN 5920-00-508-5804
NSN 5930-00-526-0543
NSN 6105-01-203-4995
NSN 6620-00-555-3992
NSN 5999-00-071-7782
NSN 6130-01-246-5645
NSN 6650-01-062-3611