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 6620-00-875-6572
NSN 6105-01-584-2746
NSN 6145-01-642-7337
NSN 4140-01-192-9857
NSN 6620-01-136-5492
NSN 6145-01-492-1927
NSN 5945-00-538-5605
NSN 7035-00-153-3826
NSN 5920-00-246-5992
NSN 5999-01-207-8565
NSN 6240-01-227-4178
NSN 6650-00-862-2142