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 5996-01-059-2971
NSN 6105-01-348-1347
NSN 5835-01-593-7579
NSN 5990-00-288-1820
NSN 5999-00-826-3975
NSN 5998-01-381-6170
NSN 6650-00-035-9297
NSN 6645-00-583-0066
NSN 6685-01-634-0611
NSN 5985-00-250-7138
NSN 5990-01-452-0911
NSN 2925-01-446-6523