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

General RG-1 Mercury Hearing Aid "A" Battery

The General RG-1 1.4 volt mercury "A" hearing aid battery was used in vacuum tube and transistor hearing aids in the late 1940s and 1950s. It was manufactured by the the General Dry Battery Company.

The General RG-1 mercury battery weighed ⅝ oz, and measured ⅝" high by ⅝" in diameter.

This battery was equivalent to the Mallory RM-1 battery.

Mercury batteries are no longer sold today because of the large quantities of mercury in them and the consequent environmental concerns.
 

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Bottom view of the General RG-1 mercury battery.


 

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Plastic tube containing 4 General RG-1 mercury batteries..


 

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View of the General RG-1 mercury battery showing its size. (Each mark on the ruler is 1/16".)

 


 

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