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 5965-01-306-1328
NSN 5945-01-087-7563
NSN 5855-00-797-8217
NSN 5930-00-431-3162
NSN 5925-00-886-5436
NSN 6240-01-252-3642
NSN 5930-01-242-8885
NSN 6620-01-643-6817
NSN 5975-00-832-0563
NSN 5930-01-215-9297
NSN 5915-01-316-8326
NSN 6135-00-947-0406