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Who Invented the First Loudspeaker? - ThoughtCo
https://www.thoughtco.com/history-of-loudspeaker-4076782#:~:text=The%20very%20first%20form%20of%20loudspeaker%20came%20to,part%20to%20electronic%20amplification%20by%20a%20vacuum%20tube.
History and Types of Speakers - Edison Tech Center
https://edisontechcenter.org/speakers.html
RCA: The Radio Corporation of America sold the first speaker instead of General Electric because the RCA was created as a consortium of many US companies. RCA was created under pressure from the US government to have major electric technology companies work together with their various patents in order to more easily create finished products which could compete with …
History of the Loud Speaker | Voices.com
https://www.voices.com/blog/history-loudspeaker/
Here’s a look at the history of the loudspeaker. The First Loudspeakers In 1877, Ernst Siemens released a more advanced version of an electric loudspeaker after Alexander Graham Bell, inventor of the telephone, had patented a similar invention in 1876. At the same time, both Nikola Tesla and Thomas Edison were experimenting with similar devices.
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