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 5985-01-090-0098
NSN 5975-01-235-5111
NSN 7035-00-145-9138
NSN 5996-01-032-4942
NSN 6145-01-096-6848
NSN 6650-01-053-8726
NSN 6135-01-301-8776
NSN 6320-00-433-2773
NSN 5996-00-760-8499
NSN 5990-01-555-6616
NSN 5985-01-640-6466
NSN 5905-01-263-9250