Hugh Hetherington Hearing Aid Museum
Hugh Hetherington Hearing Aid Museum

The Hearing Aid Museum

Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!

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Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

 

Carbon Hearing Aids: 1900-1939

Acousticon Model "D" Carbon Hearing Aid

The Acousticon Model "D" carbon hearing aid was manufactured  between 1905 and 1910 by the Hutchison Acoustic Company (1904), which later became the General Acoustic Company (1906).

This hearing aid is similar to the Model "A", except that it has a double carbon microphone (center) (there is no volume control), and an earphone (left) with a detachable handle. It is connected to a 3-volt Acousticon battery (right).

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Rear view of the Acousticon Model "D" carbon microphone.

 

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Close-up of the Acousticon Model "D" earphone.

 

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Rear view of the Acousticon Model "D" earphone showing the on/off switch on the right side. (Switch is in the "on" position.)

 

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Inside view of the empty Acousticon Model D carrying case with the earphone handle clipped to its place on the lid (center).


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The Acousticon Model D in its carrying case.

 

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Front view of the Acousticon Model "D" carrying case.

 

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A 3-volt Acousticon No. 5 battery powered the Acousticon Model D carbon hearing aid.
 

 


 

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