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 6685-01-391-7560
NSN 6145-00-824-5910
NSN 5925-00-937-5669
NSN 5965-01-517-8198
NSN 4140-01-415-6013
NSN 5835-00-466-8544
NSN 6135-00-080-9176
NSN 6150-00-644-8745
NSN 7035-01-537-0033
NSN 5905-00-659-3904
NSN 5855-00-451-6155
NSN 5835-00-404-6149