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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. |
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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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Click picture for larger view |
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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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Click picture for larger view |
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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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Click picture for larger view |
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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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Click picture for larger view |
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