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 5835-01-519-1153
NSN 5915-00-233-4501
NSN 5990-00-856-9208
NSN 6240-01-523-9983
NSN 5910-01-547-9435
NSN 5999-01-269-6931
NSN 6135-01-045-1504
NSN 6685-00-562-2047
NSN 7035-01-630-3552
NSN 6150-00-190-1268
NSN 6320-01-340-4112
NSN 6610-01-365-7796