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 6105-00-434-8987
NSN 6650-01-424-3947
NSN 6145-01-472-9227
NSN 6220-01-196-8087
NSN 5915-00-796-8117
NSN 5915-01-113-9045
NSN 4140-01-509-1300
NSN 6150-01-014-5691
NSN 5920-01-632-6992
NSN 6645-00-772-0532
NSN 5905-01-149-3043
NSN 5975-01-044-4039