Zenith "Advance" Transistor (Body) Hearing Aid
The Zenith "Advance" transistor body-style hearing aid was manufactured by the
Hearing Aid Division of the Zenith Radio Corp. in 1960. It contained 4
transistors.
The Zenith "Advance" measured 2⅝" x 1¾" x 11/16" (6.7 x 4.5 x 1.8 cm), and
weighed 1.5 oz. (44 g) without the battery.
Here is a
blurb for the Zenith "Advance". Note that it sold for $90.00 in
1960.
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The case of the Zenith "Advance" was shiny aluminum with the
Zenith crest above the keystone-shaped microphone grill. The "Zenith"
name is at the bottom front.
The wire
pocket clip that framed the microphone grill is missing. |
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Top view of the Zenith "Advance" transistor hearing aid showing the
volume control (left), the two-prong receiver cord jack (center) and the
two-position tone control/on-off switch (top left) and volume
control switch (right).
Neither of these controls had any numbers or letters on them. |
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Rear view of the Zenith "Advance" transistor hearing aid showing the
make and model as well as the serial number on the battery compartment
door (bottom).
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Close-up view of the back of the Zenith "Advance" transistor hearing
aid showing the labels for the volume control (top left) and
the two-position tone control/on-off switch (top right). Below them is the name "Zenith"
and model "Advance".
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View of lower back of the Zenith "Advance" transistor hearing aid showing the
open battery compartment door.
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View of the Zenith "Advance" transistor hearing aid battery
compartment showing the
battery in place. This
hearing aid took an "N" size 1.4 volt No.
401 mercury battery.
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Side view of the Zenith "Advance" receiver showing the the two-pronged
plug on the receiver cord, and jack on the receiver.
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Top view of the Zenith "Advance" receiver showing the receiver cord
plugged into it. Note the distinctive design of Zenith receivers at this
time.
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Side view of the Zenith "Advance" receiver and ear mold snapped
together.
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