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 5965-01-143-9577
NSN 6645-01-438-4118
NSN 4140-01-651-7192
NSN 6320-01-170-4068
NSN 6645-00-991-8704
NSN 6145-00-171-3152
NSN 6620-01-091-1038
NSN 6645-01-475-8283
NSN 6650-00-684-3060
NSN 6650-00-266-6808
NSN 2925-01-055-7607
NSN 5920-01-195-2299