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 5975-01-350-3244
NSN 6150-01-023-1516
NSN 5905-01-163-2416
NSN 5998-01-445-6580
NSN 5835-01-632-6627
NSN 5990-01-595-9441
NSN 6645-01-578-6815
NSN 2925-01-448-1277
NSN 6650-00-839-2527
NSN 6150-01-092-0674
NSN 5855-00-198-3197
NSN 5990-00-782-1400