Phantom "X" Type "N" Dummy Hearing Aid Battery
This phantom-dummy type "N" battery eliminator was made by
an unknown manufacturer for use in higher-powered hearing aids that
could use either one or two batteries, depending on the desired power
output.
This phantom-dummy battery eliminator is in its simplest and crudest
form—just a
slug of aluminum of the length and diameter of a standard type "N" size
battery.
It weighed 0.25 oz. (8 g) and measured 1⅛" x 7/16" (2.9 x 1.15 cm).
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Top view of the phantom "X" phantom-dummy type "N" battery
eliminator showing the positive terminal (which is just one end of the
aluminum rod. It's purpose was to fill one battery position so in low-power mode,
the hearing aid would run on one 1.4 mercury battery.
In high-power mode, it was taken out and a second type "N" battery
inserted in its place raising the voltage to 2.8 volts.
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Side view of the phantom "X" phantom-dummy type "N" battery eliminator. There are no
identifying marks on this battery eliminator. It could have been made by
any machine shop and not been a production model since it is so
basic—not even a cardboard sleeve on it.
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Bottom view of the phantom "X" type "N" battery eliminator
showing the other end.
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