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 6150-01-541-0840
NSN 5996-01-409-1860
NSN 6145-01-231-9169
NSN 5999-01-434-5670
NSN 7035-01-238-9301
NSN 5950-01-265-6291
NSN 5920-00-160-7626
NSN 7035-01-443-3052
NSN 6150-01-590-7812
NSN 6645-01-157-4199
NSN 6620-01-014-6913
NSN 5999-01-462-4856