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 5999-01-368-9624
NSN 5998-01-484-9578
NSN 6320-01-600-5808
NSN 5925-00-788-0368
NSN 7035-01-631-6745
NSN 5905-01-443-0925
NSN 5950-01-585-9969
NSN 6645-00-103-2517
NSN 2925-01-492-5342
NSN 5935-01-214-8323
NSN 5925-01-352-7737
NSN 5905-01-189-7281