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 5998-01-448-6789
NSN 7035-01-641-8246
NSN 6130-01-601-0612
NSN 5998-01-421-2773
NSN 6135-01-496-5810
NSN 6645-01-168-8465
NSN 5920-00-232-6419
NSN 5945-00-401-8067
NSN 5990-01-185-9835
NSN 4140-00-449-7345
NSN 6150-01-377-9057
NSN 6150-01-373-4465