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 6620-00-189-0967
NSN 5935-01-476-3280
NSN 5895-01-531-7313
NSN 6130-01-333-7558
NSN 5925-01-419-0217
NSN 6650-01-183-0711
NSN 2925-01-036-8251
NSN 6620-01-067-0536
NSN 6610-01-607-8246
NSN 5975-01-615-3062
NSN 6645-01-343-1676
NSN 5945-01-229-9618