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 5990-01-231-9608
NSN 5996-01-622-8976
NSN 5930-01-634-0659
NSN 5950-01-218-5368
NSN 5950-01-467-6697
NSN 5855-01-422-8060
NSN 6685-00-360-4305
NSN 5998-01-607-6310
NSN 6130-01-205-2640
NSN 6240-01-462-1874
NSN 6685-01-237-1911
NSN 6150-01-242-2602