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 5998-01-065-0346
NSN 6645-01-407-5799
NSN 6650-01-425-7362
NSN 5975-00-939-5638
NSN 7035-01-391-7470
NSN 6620-00-270-3275
NSN 6685-01-521-2672
NSN 6320-00-646-3311
NSN 4140-00-555-2579
NSN 5996-00-351-2369
NSN 5915-01-601-0645
NSN 5945-01-185-6596