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 5990-01-502-8209
NSN 2925-00-791-8776
NSN 5855-01-555-3354
NSN 5990-01-381-8376
NSN 5895-01-052-7332
NSN 6320-01-352-5653
NSN 6220-01-578-5724
NSN 6220-01-521-2720
NSN 5985-00-193-3501
NSN 5895-01-594-8740
NSN 6110-01-372-9785
NSN 6620-01-435-8672