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

Radioear B-5A Carbon Hearing Aid

The Radioear B-5A carbon hearing aid was manufactured by E. A. Myers & Sons Ltd. of Pittsburg, PA in 1932.

The Model B-5A consisted of a carbon transmitter (microphone) 2˝” in diameter that plugged onto the top a metal battery case. The battery case held two “C” size batteries giving an operating voltage of 3 volts.

This hearing aid used a small black miniature receiver onto which an ear mold was clipped.

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The rear shows the on-off switch which also functions as a volume control. Full volume is reached at the "On" position.


 

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