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 6650-00-238-1199
NSN 5985-01-359-7376
NSN 6645-01-643-7151
NSN 5945-00-533-3977
NSN 6645-00-223-8018
NSN 6320-01-459-6992
NSN 6145-00-107-3283
NSN 5996-01-408-0364
NSN 5910-01-633-9963
NSN 5985-01-391-5629
NSN 6620-01-159-4330
NSN 5996-01-347-5725