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 5990-00-956-9130
NSN 6240-00-079-0112
NSN 5945-01-428-9544
NSN 5998-01-443-4477
NSN 5945-01-237-5371
NSN 6240-01-227-4178
NSN 5985-01-620-5451
NSN 6620-00-553-4672
NSN 6685-00-496-6028
NSN 5945-00-927-9148
NSN 6320-01-631-7828
NSN 5965-00-762-0630