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 6135-00-660-8654
NSN 6610-00-104-4972
NSN 5950-01-146-8097
NSN 5990-01-416-0362
NSN 6150-01-378-6736
NSN 2925-01-084-3347
NSN 4140-00-956-9225
NSN 6610-01-132-6660
NSN 5960-00-275-2990
NSN 5935-00-950-4725
NSN 5985-00-554-9730
NSN 5999-00-129-9357