Zenith "Vocalizer III" Transistor (Body) Hearing Aid
The Zenith "Vocalizer III" transistor hearing aid was manufactured by the
Hearing Aid Division of the Zenith Radio Corp. in 1972. It was an 9-transistor aid.
The Zenith "Vocalizer III" measured 2½" x 1¾" x ¾" thick, and
weighed 2 oz. with battery. The case had an anodized
aluminum front and very light grey plastic back over a black chassis.
The microphone grill is a narrow horizontal rectangle at the top
front of the case. The name "ZENITH" is engraved on the lower front
panel.
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Top view of the Zenith "Vocalizer III" showing the 1-6 position
volume control/on-off switch (top left) and the 3-position "M"
(microphone), "MT" (both microphone and t-coil) and "T" (t-coil) switch
(top right).
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The left side of the Zenith "Vocalizer III" showing the 3-pin receiver
cord jack (center). Note, the plug can be put inserted so the cord
points up or down. When worn inside a pocket, a person would likely want
the cord pointing up.
The "hole" (between the pocket clip and receiver cord jack) is really
just an indentation in the plastic.
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Rear view of the Zenith "Vocalizer III" hearing aid showing the
battery door, which opened from the bottom of the case. The Zenith
"Vocalizer III" took an "N" size 1.4 volt
No. 401 mercury battery. |
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Rear view of the Zenith "Vocalizer III" hearing aid. On the upper back
in raised letters are the words "VOCALIZER III". |
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The Zenith "Vocalizer III" hearing aid in its original case. |
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Top view of the Zenith "Vocalizer III" carrying case.
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