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 5998-01-412-3438
NSN 4140-01-450-9798
NSN 5895-01-121-7079
NSN 6320-00-036-3688
NSN 5998-01-620-2461
NSN 5855-01-321-3881
NSN 5930-01-648-1489
NSN 5835-00-257-2852
NSN 5965-01-447-2992
NSN 5985-01-626-3218
NSN 5895-01-510-7482
NSN 6240-01-510-3050