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Speaker (audio equipment) - Wikipedia
https://en.wikipedia.org/wiki/Speaker_(audio_equipment)#:~:text=Alexander%20Graham%20Bell%20patented%20his%20first%20electric%20loudspeaker,1877%20by%20an%20improved%20version%20from%20Ernst%20Siemens.
Who Invented the First Loudspeaker? - Reference.com
https://www.reference.com/history/invented-first-loudspeaker-2c60f42151e31957
The first working loudspeaker was invented by Alexander Graham Bell who incorporated the device into his other famous invention, the …
Evolution of Speakers timeline - Timetoast timelines
https://www.timetoast.com/timelines/evolution-of-speakers--2
Edison Tech In 1861, Johann Philipp Reis, first developed a simple type of electronic loudspeaker. During his early years he was a teacher at Germany in which he invented the hearing aid that led to his invention of the speakers. He …
History and Types of Speakers - Edison Tech Center
https://edisontechcenter.org/speakers.html
C.W. Rice of General Electric and E.W. Kellogg of AT&T worked together in Schenectady, New York to develop the modern speaker and first electric amplification system. They created a working prototype in 1921.
Loudspeaker invented by Ernst Werner von Siemens in year 1877
https://targetstudy.com/knowledge/invention/21/loudspeaker.html
Ernst Siemens patented the first loudspeaker on Dec. 14, 1877. He was the first to describe the "dynamic" or moving-coil transducer, with a circular coil of wire in a magnetic field and supported so that it could move axially. Development in the invention of Loudspeakers
Who invented speakers? - Answers
https://www.answers.com/Q/Who_invented_speakers
Abinawan Puracchidas invented the first speakers in 1991 When were the speakers invented? i relly need to know who invented the ipod speakers.i need …
Evolution of Sound | Audio Technology Past, Present, and ...
https://insights.ges.com/us-blog/evolution-of-sound-audio-technology-past-present-and-future
Throughout the 1870s and 80s, various loudspeaker-like devices existed, most notably on Alexander Graham Bell’s telephone (1876) and Edison’s phonograph (1877), but the true moving coil loudspeaker, the forebear of all loudspeakers since, was invented by …
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