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.


Vacuum Tube Hearing Aids: 1921-1953

Challenger  Model 506 Custom-Built Vacuum Tube Hearing Aid

 The Challenger vacuum tube hearing aid was custom built for customers at the Hearing Device Centre in Vancouver, B.C. around 1948.

It measured 4˝" x 2 9/16" x 15/16" (11.5 x 6.3 x 2.9 cm) and weighed 4.4 oz. (126 g).

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It was a 1-piece hearing aid and used three Raytheon miniature hearing aid vacuum tubes (see right).



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It was powered by a 412E 22˝ volt "B" battery, and an AA size carbon zinc 1˝ volt "A" battery that fit in the battery compartment (shown right).

The Model No. (506) is written in pencil on the small sticker just above the decal on the inside of the battery door.


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The logo on the Challenger reads: "Custom Built Challenger, Hearing Service Center, 405 Birks Bldg, Vancouver, BC"




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