Where was the electric hearing aid invented?

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Wilhelmine Wiza asked a question: Where was the electric hearing aid invented?
Asked By: Wilhelmine Wiza
Date created: Tue, Jul 6, 2021 3:46 AM
Date updated: Tue, Jun 28, 2022 8:40 AM

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Top best answers to the question «Where was the electric hearing aid invented»

The first wearable hearing aid using vacuum tube technology went on sale in England in 1936, and a year later in the United States. By the 1930s, hearing aids were becoming popular to the public. Multitone of London patented the first hearing aid to use automatic gain control.

The first commercially-available vacuum- tube hearing aid was made by the Globe Ear-Phone Company of Boston, MA in 1921.

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