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 6145-00-975-4457
NSN 6645-01-322-8897
NSN 6150-01-347-0052
NSN 6610-00-315-9315
NSN 6110-01-181-6216
NSN 6320-00-270-8222
NSN 6650-01-265-0025
NSN 6320-01-607-1491
NSN 6650-01-467-8818
NSN 6110-01-473-5168
NSN 5999-01-580-2876
NSN 5996-01-577-3838