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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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Hearing Aid Battery Testers |
Yankee Battery Tester
This Yankee battery meter is a single range meter that could test up
to 50 volt batteries.
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Click picture for larger view |
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(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
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