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 6145-01-431-8803
NSN 7035-00-402-9426
NSN 7035-00-413-0992
NSN 5935-00-948-3838
NSN 6610-00-155-1334
NSN 6135-01-098-3020
NSN 6110-01-544-3949
NSN 5965-01-226-5006
NSN 5915-00-552-1298
NSN 5990-01-292-2369
NSN 5950-00-107-7321
NSN 5960-01-418-2641