bn:02125014n
Noun Concept
Categories: Transducers, Acoustics, Maritime safety, Sonar
EN
Fessenden oscillator  Fessenden transducer
EN
A Fessenden oscillator is an electro-acoustic transducer invented by Reginald Fessenden, with development starting in 1912 at the Submarine Signal Company of Boston. Wikipedia
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EN
A Fessenden oscillator is an electro-acoustic transducer invented by Reginald Fessenden, with development starting in 1912 at the Submarine Signal Company of Boston. Wikipedia
An underwater sound projector Wikipedia Disambiguation
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