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 5999-01-086-2400
NSN 6320-00-308-7386
NSN 5985-01-219-5297
NSN 7035-01-449-1189
NSN 5920-01-284-7306
NSN 6150-01-420-8536
NSN 5835-01-340-4895
NSN 5960-01-599-9821
NSN 5895-01-634-0630
NSN 4140-01-364-1684
NSN 6135-01-506-4791
NSN 6150-01-596-6235