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 6610-01-278-2446
NSN 5915-01-089-9836
NSN 5945-01-011-4890
NSN 5985-01-240-9286
NSN 6130-01-194-8889
NSN 5998-00-081-1454
NSN 5855-01-398-6170
NSN 5990-01-446-9118
NSN 5835-01-138-0181
NSN 5965-00-253-1302
NSN 5930-00-801-2777
NSN 5985-01-476-7254