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 6620-00-137-0332
NSN 5996-00-063-8208
NSN 5920-01-141-6885
NSN 5910-01-592-9406
NSN 5990-01-215-0590
NSN 6610-00-542-6307
NSN 6320-00-779-5923
NSN 5930-01-466-1530
NSN 6105-01-349-8588
NSN 6145-01-334-0646
NSN 6645-01-272-3202
NSN 6650-00-004-3683