Acousticon No. 5 Carbon Hearing Aid Battery
The Acousticon No. 5 battery was produced by
Dictograph Products, Inc. of New York for use in carbon Acousticon Hearing
aids from 1908 through the 1930s.
It measured 3 7/8" by 2" by 1" (10.0 x 5.1 x 2.6
cm) and
weighed 6.2 oz. (176 g). It was composed of two carbon-zinc cells and delivered 3
volts.
In the Acousticon Battery price list of June 1, 1935 it is listed as
selling for $0.45 each.
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The front of the Acousticon No. 5 battery. The label reads, "Acousticon
Battery No. 5. Made in USA. Dictograph Products Company, Inc. New York."
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The top of the Acousticon No. 5 battery showing the jacks for the
microphone cords. The left jack is smaller than the right jack so you couldn't plug the cables into
the wrong jacks, thus reversing the polarity.
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The back of the Acousticon No. 5 battery with an advertising blurb for
their new "Golden Tone" series of Acousticon hearing aids that came out
in 1931. Thus, this particular battery dates to around 1931 to 1933.
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Close up of the Acousticon No. 5 battery showing the bottom of the
battery with U29 stamped on it.
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