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 5999-00-067-3960
NSN 5975-01-653-7919
NSN 5999-01-492-5707
NSN 4140-01-327-4567
NSN 5999-01-502-1489
NSN 5965-00-644-0334
NSN 6685-01-626-2614
NSN 5855-00-688-9954
NSN 6650-01-090-8576
NSN 6105-00-471-9030
NSN 5965-01-514-7231
NSN 6320-01-449-1014