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On-line Hearing Aid Museum |
Hearing Aids of all types—Ear
Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids,
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Zenith Z-12-G Hearing Aid "B" Battery
This Zenith 22˝ volt hearing aid "B" battery was used in
Zenith
(and other) vacuum tube hearing aids from about 1948 to 1952.
It weighed 1˝ oz., and measured 2⅛" in height, 1 in width and
⅝"
thick.
This battery was paired with an RM-3 1.4 volt mercury "A" battery in
vacuum tube hearing aids.
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Click picture for larger view |
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Top end view of the Zenith Z-12-G "B" battery showing the
positive terminal end. Notice the red "end" color denoting the positive
terminal, as well as the black "+".
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Click picture for larger view |
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Bottom end view of the Zenith Z-12-G "B" battery showing
the negative terminal end. Notice the blue "end" color denoting the
positive terminal, as well as the black "-".
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Click picture for larger view |
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