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 5905-01-524-9663
NSN 5950-01-054-3508
NSN 5990-01-414-1184
NSN 5920-00-079-9377
NSN 6150-00-926-8429
NSN 6135-01-079-7852
NSN 6105-01-656-6348
NSN 6645-01-471-4960
NSN 5960-01-210-0580
NSN 5895-00-959-2284
NSN 5998-00-366-9725
NSN 6320-01-564-0893