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.

 

Hearing Aid Batteries

Teutonophone No. 1 Hearing Aid Battery

The Teutonophone No. 1,  3 volt  battery was used in Teutonophone hearing aids around 1930.

It only weighed 3½ oz., and measured 1⅝" by ¾" by 2⅝" high.

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The top view of the Teutonophone No. 1 battery showing the flat spring contacts.

 


 

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