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

John Bell & Croyden Type RA-HT Hearing Aid "B"  Battery

The John Bell & Croyden Type RA-HT  battery was a 32-volt hearing aid "B" battery used in certain vacuum tube hearing aids in the 1930s. The actual manufacturer is unknown.

This battery weighed 13 oz, and measured 4⅛" long by 1¾" wide by 2⅛" high.

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Top view of the John Bell & Croyden Type RA-HT battery showing the voltage (32 volts) stamped into the top as well as defining the two battery terminals as "Red" (top right) and "Black" (bottom right).


 

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The label on the side of the John Bell & Croyden Type RA-HT  battery reads "John Bell & Croyden/Wigmore Street, London, W.1." then "The Complete Hearing Service" and "When Re-ordering please quote Type No. Ra-HT."

This battery was used in the John Bell  & Croyden vacuum tube hearing aid.

 


 

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