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 5990-01-411-5930
NSN 5965-01-107-8549
NSN 5945-00-122-3650
NSN 6610-00-155-1334
NSN 5945-00-422-4942
NSN 5975-01-354-8929
NSN 5905-01-127-2056
NSN 5835-00-887-6420
NSN 5996-00-549-4258
NSN 5990-00-277-3763
NSN 5990-01-652-7373
NSN 5950-01-186-6654