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 5950-00-468-7991
NSN 5920-01-431-6778
NSN 2925-00-134-4827
NSN 6130-01-276-5980
NSN 5975-01-132-9231
NSN 6320-01-233-5798
NSN 6105-00-538-2917
NSN 5945-01-235-6550
NSN 6610-01-278-8377
NSN 6150-01-582-8661
NSN 5990-00-765-1264
NSN 5945-01-644-5682