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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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Sonotone X800 Hearing Aid "A" Battery
This
is an Sonotone X800 1½ volt hearing aid "A" battery used in
Sonotone
vacuum tube hearing aids in the 1940s.
It weighed 4½ oz., and measured
3¾" in height by 1" in diameter.
This battery was paired with a Sonotone 45 volt "B" battery in
2-piece vacuum tube hearing aids.
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Click picture for larger view |
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This battery is a slightly different version of the above battery. It
is a Sonotone X800-S, but it is the same size and weight as the
above X800 battery.
Someone has written on the side the date of Nov. 22, 1945.
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Click picture for larger view |
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Top view of the Sonotone X800-S battery showing the 2-hole socket.
Correct polarity was maintained as one hole was larger and the other
smaller so you couldn't insert the plug backwards.
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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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