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 5990-01-586-8202
NSN 5905-00-248-6461
NSN 5998-00-244-1835
NSN 5915-01-428-9343
NSN 5915-01-503-6985
NSN 5920-01-344-8247
NSN 5998-01-555-1115
NSN 6610-01-371-3006
NSN 5935-01-447-1711
NSN 5925-00-992-4963
NSN 6620-01-426-2220
NSN 6645-00-588-3157