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 4140-00-197-9712
NSN 6645-00-363-9775
NSN 5920-01-169-4560
NSN 5999-01-579-7759
NSN 6130-01-207-2564
NSN 5930-00-105-4043
NSN 5999-01-023-1633
NSN 6240-01-433-3648
NSN 6610-00-355-0450
NSN 6240-01-420-6495
NSN 5999-00-411-2885
NSN 5999-01-645-4854