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

Eveready D888 Hearing Aid "A" Battery

This is an English Eveready 4½ volt  battery used in carbon hearing aids during the 1920s and 1930s.As you can see, the cost was 2 shillings.

This battery weighed 8 oz., and measured 3¾" by 3" by 1".

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The reverse side of the above D888 Eveready battery declaring "Specially manufactured for acoustic kits."


 

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This is a newer version of the 4½ volt Eveready D888 hearing aid "A" battery, now used in vacuum tube hearing aids in the 1930s and 1940s.

The Eveready D888 "A" battery could be paired with the Eveready B112 "B" battery.

 

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The reverse side of this D888 Eveready "A" battery declaring "Specially designed for use in hearing aids."


 

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Top view of the Eveready D888 "A" battery showing the 3 pin socket for the "A" battery cord.  Only the two outside pins were used. The one on the right is larger so you couldn't plug them in with the polarity reversed.

 

 


 

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