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 4140-01-540-5318
NSN 4140-01-264-9640
NSN 6610-01-006-2305
NSN 7035-01-227-2546
NSN 5905-01-286-0656
NSN 6645-01-258-6188
NSN 5905-01-625-1653
NSN 5905-01-634-0595
NSN 5930-01-440-9817
NSN 5920-01-550-6168
NSN 5985-01-424-0571
NSN 5935-01-054-6188