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 6645-01-356-1179
NSN 5990-00-829-2588
NSN 5910-01-051-4350
NSN 5925-01-652-3980
NSN 5998-01-527-8334
NSN 5975-01-504-7210
NSN 6240-01-019-0348
NSN 5999-01-326-4614
NSN 6145-01-585-3745
NSN 6150-00-350-3086
NSN 5910-01-076-9419
NSN 6610-01-175-9045