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 5925-00-327-9371
NSN 5930-01-660-9089
NSN 5960-01-458-6484
NSN 6645-00-825-5677
NSN 6320-01-017-5274
NSN 6130-01-351-4919
NSN 5960-00-732-7880
NSN 5996-01-434-6075
NSN 5895-01-219-2698
NSN 6145-01-169-3001
NSN 6130-01-566-7120
NSN 4140-01-142-8340