On-line 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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General Info

Non-Electric

Carbon

Vacuum Tube

Transistor (Body)

Transistor (Ear)

Miscellaneous

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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 411-E Hearing Aid "B" Battery

This is an Eveready 15 volt 411-E Mini-Max hearing aid "B" battery used in 1-piece vacuum tube hearing aids in the 1940s and 1950s.

It weighed about 1 oz., and measured 1½" by 1" by 7/8".

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