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 4140-01-459-7411
NSN 5920-01-250-0715
NSN 6645-01-605-1485
NSN 5925-01-123-9866
NSN 5920-01-027-0660
NSN 6220-01-204-3575
NSN 6135-00-542-6216
NSN 5895-01-425-3425
NSN 6145-01-548-7704
NSN 5920-01-579-9501
NSN 5935-01-352-1942
NSN 4140-01-371-1565