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 5990-01-046-8530
NSN 7035-01-429-7954
NSN 4140-00-307-2732
NSN 5998-01-498-1940
NSN 6150-00-208-7785
NSN 6135-01-017-3001
NSN 5945-01-112-9930
NSN 6110-01-513-9907
NSN 4140-01-441-3006
NSN 6220-00-981-9184
NSN 5975-01-424-0314
NSN 5998-00-557-2832