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 6645-01-294-6403
NSN 6620-01-631-0700
NSN 6650-00-220-2839
NSN 5925-01-401-5314
NSN 5935-00-014-6619
NSN 5835-00-341-5441
NSN 6110-00-796-4534
NSN 6240-01-534-2987
NSN 5895-01-368-4619
NSN 5996-00-949-4244
NSN 5975-01-585-5336
NSN 6105-01-534-8992