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 6220-00-901-2097
NSN 6240-01-005-3456
NSN 6135-01-563-4445
NSN 2925-01-559-5733
NSN 2925-01-203-0493
NSN 5930-00-195-2443
NSN 5950-00-645-3966
NSN 6610-01-545-0766
NSN 5990-01-448-2751
NSN 5920-00-156-0840
NSN 6135-01-045-1504
NSN 6610-01-316-3547