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 5950-01-321-8394
NSN 7035-01-624-1352
NSN 5998-01-258-5928
NSN 6150-00-550-7706
NSN 5945-00-960-7367
NSN 5960-00-626-3644
NSN 6685-00-494-3153
NSN 5905-00-722-4889
NSN 5965-01-426-8325
NSN 5925-01-191-6498
NSN 5930-01-047-3985
NSN 5905-01-094-6735