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 6240-00-031-3112
NSN 5915-00-952-2320
NSN 5999-00-186-0058
NSN 5905-01-590-9198
NSN 5920-00-407-7652
NSN 5920-00-274-6929
NSN 5990-00-202-5127
NSN 6685-00-183-6243
NSN 6685-00-284-1070
NSN 6610-01-022-2474
NSN 5835-00-980-0468
NSN 5930-01-350-1868