An instrument specifically designed to measure the amplitude and frequency of the constituents of a complex electrical wave form. May include transducer mechanism for converting sound pressure into electrical energy.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6320-00-116-3658
NSN 5965-01-308-9582
NSN 6685-01-297-7983
NSN 6150-00-063-3969
NSN 5998-01-309-9832
NSN 5998-01-390-3620
NSN 6610-01-102-2256
NSN 5990-00-288-1820
NSN 6650-01-125-4989
NSN 5950-01-459-2320
NSN 5835-00-213-9811
NSN 6645-01-163-9930