Toshiba Model THA-1002 Transistor (Body) Hearing Aid
The Toshiba Model THA-1002 transistor body hearing aid was
manufactured by the Tokyo Shibaura Electric Co., Ltd. in Tokyo, Japan in
1961 and was distributed under the "Toshiba" trade name by Transistor World
Corporation of New York, NY.
This 4-transistor hearing aid measured 2 15/16" x 2" x 11/16" (7.5 x 5.0 x 1.7 cm) and
weighed 2.6 oz (74 g) without the battery.
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Front view of the Toshiba Model THA-1002 transistor hearing aid showing
the Toshiba name (top) and below it the dark green triangular-shaped
microphone grill. The large "V"-shaped wire pocket clip is in the
center. Note that this microphone grill is green (in contrast to the
model THA-1001 which had a brown grill).
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Top view of the Toshiba Model THA-1002 transistor hearing aid showing
the volume control wheel (left), the black push button to release the back
cover (center) and the receiver cord jack (right). Below the
volume control wheel is the tone control lever (lower
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Close-up view of the top left corner of the Toshiba Model THA-1002 transistor hearing aid showing
the 0-10 volume control/on-off wheel (center) and the three-position
tone ontrol lever below it (shown in the low tone position).
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Rear view of the Toshiba Model THA-1002 transistor hearing aid. The
whole back comes off to reveal the battery compartment. Note in the
top left corner the letters "L" (low), "M" (medium) and "H" (high) for
indicating the tone setting.
Near the bottom are stamped the words "Toshiba" (in script), and
below that the model number (THA-1002), and below that the name of the
manufacturer (Tokyo Shibaura Electric Co., Ltd.) and "Japan". |
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Bottom view of the Toshiba Model THA-1002 transistor hearing aid.
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Right side view of the Toshiba Model THA-1002 transistor hearing aid
showing the "Tel" (telephone t-coil) and "Mic" (microphone) switch
(center) shown here in the "Tel" position.
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Rear view of the Toshiba Model THA-1002 transistor hearing aid with the
back cover off revealing the battery compartment (lower right). Note
the three-position tone control mechanism (top left) shown in the "M"
(medium) position.
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Close-up view of the Toshiba Model THA-1002 transistor hearing aid
battery compartment. This hearing aid used a single AA battery, either
mercury or carbon-zinc.
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View of the Toshiba Model THA-1002 transistor hearing aid battery
compartment with an
Eveready No. 915 battery in place.
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Lower inside view of the back of the Toshiba Model THA-1002 transistor
hearing aid showing the only number on this device (95-2)—obviously too
short to be the serial number.
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View of the top left corner of the receiver of the Toshiba Model
THA-1002 transistor hearing aid showing the receiver cord jack.
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Top left corner of the Toshiba Model THA-1002 transistor hearing aid
showing the receiver cord plugged into the jack.
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Top left corner of the Toshiba Model THA-1002 transistor hearing aid
showing the receiver cord unplugged.
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Front view of the receiver cord plug of the Toshiba Model THA-1002
transistor hearing aid. Note that the left pin is larger in diameter
than the right pin in order to preserve correct polarity. Also note that
the pins are offset to the right so the pins wouldn't fit into the jack
if you tried to put them in backwards. On the front of the plug is the
name "Toshiba" in script and below that "Japan". |
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Rear view of the receiver cord plug of the Toshiba Model THA-1002
transistor hearing aid showing the part number on this plug (50133-2).
Note: some plugs don't have this number on them.
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Rear view of the receiver of the Toshiba Model THA-1001 transistor hearing aid.
This receiver measured 13/16" (2.1 cm) in diameter.
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Front view of the receiver of the Toshiba Model THA-1001 transistor
hearing aid showing the name "Denmark" (left). Toshiba probably
purchased these receivers from Oticon in Denmark. The ear mold
(whether stock or custom) snapped onto the nubbin in the center of the
receiver.
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Side view of the receiver of the Toshiba Model THA-1002 transistor
hearing aid showing a stock ear mold attached.
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Side view of the receiver of the Toshiba Model THA-1002 transistor
hearing aid showing a custom ear mold attached.
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Close-up view of the custom (left) and stock (right) ear molds showing
how much better the custom ear molds fitted in a person's ear canal. The
stock ear molds could much more easily fall out.
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Front view of the brown leather case with the Toshiba Model THA-1001
transistor hearing aid in it.
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Rear view of the brown leather case with the Toshiba Model THA-1001
transistor hearing aid in it.
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