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 6220-01-220-5260
NSN 6645-01-496-7144
NSN 6105-00-038-7518
NSN 6135-00-057-2005
NSN 5990-00-145-1187
NSN 6150-00-576-3964
NSN 5905-00-081-2355
NSN 6610-01-238-8712
NSN 6240-01-542-8886
NSN 5895-01-075-1667
NSN 6130-01-541-3995
NSN 5930-01-270-6145