Zenith "N Size" Carbon-Zinc Hearing Aid Battery (2)
The Zenith N cell 1˝ volt hearing aid battery was made by the
Zenith Radio Corporation of Chicago, IL for use in their hearing aids
around 1955.
The Zenith N-sized battery weighed 0.2 oz. (6 g), and measured 1
3/16" high
by 7/16"
in diameter (3.1 x 1.2 cm).
N-sized batteries were the most common size of battery used in
transistor (body) hearing aids in the 1950s and 1960s.
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Front view of the Zenith N-sized battery showing the Zenith name and the
fact that it is an N-sized battery. Technically, this is a "cell", not
a "battery". A battery is composed of 2 or more cells, typically wired
in series to increase their voltage. Thus, it is a battery (number, or
line) of cells.
A single-celled "battery" is really a cell, not a battery. But since
we commonly call single-celled (1˝ volt) units such as this a "battery",
we use the term "battery" and "cell" interchangeably in the Museum. |
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Rear view of the Zenith N-sized battery showing it is a 1˝ volt
(single-celled carbon-zinc) battery. The inscription below it reads, "Distributed
by Zenith Hearing Instrument Corp., Chicago, ILL. 60635 U.S.
A., and "Made in U.S.A."
At the bottom is the arrow showing the polarity— negative at the left
and positive at the right.
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Right side view of the Zenith N-sized battery showing the
inscription, "Hearing Aid Battery".
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Top view of the Zenith N-sized battery showing the
positive terminal.
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Bottom end view of the Zenith N-sized battery showing
the negative terminal.
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