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 6320-01-522-0318
NSN 5905-01-423-2839
NSN 5965-01-449-1101
NSN 6130-00-304-4827
NSN 5915-01-360-5093
NSN 6685-01-294-1157
NSN 5985-01-065-3077
NSN 6220-01-492-6409
NSN 5920-01-445-9189
NSN 4140-01-428-4485
NSN 6650-00-629-8027
NSN 5960-00-448-0417