By line selector sw, 135 ohms input equals 4500 ohms nomsnal; 600 ohms line input equals 20000 ohms
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 6610-01-601-1833
NSN 5985-01-499-4898
NSN 5999-00-381-9891
NSN 5965-01-406-6320
NSN 5999-01-441-3319
NSN 6650-01-080-2855
NSN 5975-01-392-0436
NSN 6135-01-151-2705
NSN 6150-01-088-0250
NSN 2925-01-389-6874
NSN 5915-01-605-2203
NSN 6650-01-348-6623