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 6650-00-475-7746
NSN 6620-01-420-0964
NSN 5910-01-400-5947
NSN 6645-00-469-5963
NSN 5935-01-264-2857
NSN 6645-01-229-7749
NSN 6220-01-112-8855
NSN 4140-01-279-3301
NSN 5910-01-117-9901
NSN 5960-01-151-4518
NSN 5999-01-421-3388
NSN 6685-00-887-6815