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 5910-01-074-3599
NSN 5935-01-498-0173
NSN 5965-01-042-2001
NSN 5905-01-439-5832
NSN 5935-00-482-4003
NSN 5998-01-555-7859
NSN 5905-00-244-1663
NSN 5999-01-506-0609
NSN 6620-00-538-8746
NSN 5905-01-375-6589
NSN 5930-01-470-6073
NSN 6145-01-495-1360