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 6645-01-659-1583
NSN 7035-00-859-9601
NSN 6620-01-028-6374
NSN 5835-01-370-4292
NSN 5965-00-716-7078
NSN 6145-01-395-7748
NSN 6130-01-012-6073
NSN 5998-00-269-9528
NSN 7035-00-009-8705
NSN 6145-01-459-2287
NSN 5895-00-777-1704
NSN 6220-00-801-0801