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 5945-01-359-5262
NSN 6650-01-358-5850
NSN 5999-00-395-2715
NSN 6105-01-643-5520
NSN 2925-01-185-9144
NSN 6610-00-917-6763
NSN 6610-00-288-5655
NSN 5965-01-487-2713
NSN 6130-00-156-6052
NSN 5905-00-805-3613
NSN 5990-00-212-4316
NSN 5965-01-436-0390