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

Burgess No. W25 Hearing Aid "B" Battery

The Burgess No. W25  was an unusual flat dual-voltage "B" battery used in certain vacuum tube hearing aids in 1939.

It weighed 8.3 oz., and measured 5⅝" by 2 15/16" by ⅝" high.

 

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Front view of the Burgess No. W25 hearing aid "B" battery showing the name and model number. This battery was made in Canada by the Burgess Battery Company.

 

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Top front view of the Burgess W25 hearing aid battery showing the three battery contacts.

The left one was for the 37˝ volt plate voltage. The middle contact was for the 13˝ volt grid voltage and the right contact was the ground.


 

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Three-quarter view of the back and sides of the Burgess W25 "B" battery. There were no markings on the back or sides.

 


 

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