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 5965-01-343-3950
NSN 6645-01-571-8578
NSN 5835-01-464-7038
NSN 6220-01-501-2784
NSN 6145-01-207-4480
NSN 5975-00-686-3504
NSN 6135-01-553-3604
NSN 6240-01-388-2413
NSN 5985-01-539-4199
NSN 5945-01-442-1054
NSN 5960-00-118-1126
NSN 6650-00-910-2708