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 2925-01-335-4549
NSN 5930-01-383-2885
NSN 5985-00-933-6675
NSN 5915-01-502-9659
NSN 5950-01-347-0312
NSN 5950-01-570-1816
NSN 5965-00-055-8013
NSN 6645-01-564-7129
NSN 5835-00-892-3510
NSN 6135-01-329-7994
NSN 5895-00-235-4520
NSN 6645-00-200-2324