Beltone Model D "Dulcet" Transistor (Body) Hearing Aid
The Beltone Model D "Dulcet" was produced by the Beltone Electronics Corp. of Chicago, IL
in 1955.
It measured 2 9/16” by 1⅝” by ⅝” and weighed 3 oz with its battery. It
used 3 transistors.
The case was chrome front and back over a black plastic
chassis—visible on all sides. Gold-colored pocket clips are on the front near each
side.
The gold-colored rectangular microphone grill is at the top front.
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Top view of the Beltone Model D showing the receiver cord jack (left).
The square hole above the right side of the receiver jack was for a
protrusion on the receiver cord plug so it couldn't be plugged in wrong. |
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Right side view of the Model D showing the volume control/on-off switch. |
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Rear view of the Model D showing the make engraved in the case "Beltone". Note the
dot hole in the center was apparently not used with this model.
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View of the battery compartment of the Beltone Model D showing the
model number "Model D" and serial number in the bottom of the battery
compartment.
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View of the battery compartment of the Beltone Model D showing the
battery in place. It used an
E401E 1.4 volt mercury battery. The
battery compartment door is hinged at the top and swings upward.
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The Beltone Model D in its original case. |
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Outside view of the original case of the Beltone Model D.
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