Hugh Hetherington Hearing Aid Museum
Hugh Hetherington Hearing Aid Museum

The Hearing Aid Museum

Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!

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Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid.

 

Body Type Transistor Hearing Aids

Toshiba Model THA-1001 Transistor (Body) Hearing Aid

The Toshiba Model THA-1001 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 2.4 oz (68 g) without the battery.

Back in 1961 this hearing aid only cost $29.88 as shown in this coupon.

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Front view of the Toshiba Model THA-1001 transistor hearing aid showing the Toshiba name (top) and below it the brown triangular-shaped microphone grill. The large "V"-shaped wire pocket clip is in the center.

Note that this microphone grill is brown (in contrast to the model THA-1002 which had a green grill).

 

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Top view of the Toshiba Model THA-1001 transistor hearing aid showing the receiver cord plug (left), the black push button to release the back cover (center) and the 0-10 volume control/on-off wheel. Behind the volume control wheel is the two-position tone control lever.

 

 

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Rear view of the Toshiba Model THA-1001 transistor hearing aid. The whole back comes off to reveal the battery compartment.

Note in the top left corner the letters "L" (low) 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-1001), 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-1001 transistor hearing aid.

 

 

 

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Right side view of the Toshiba Model THA-1001 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-1001 transistor hearing aid with the back cover off revealing the battery compartment (lower right).

Note the two-position tone control mechanism (top left).

 

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Close-up view of the Toshiba Model THA-1001 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-1001 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-1001 transistor hearing aid showing the only number on this device—obviously too short to be the serial number. It looks like "72W"

 

 

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View of the top left corner of the receiver of the Toshiba Model THA-1001 transistor hearing aid showing the receiver cord jack.

 

 

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Top left corner of the Toshiba Model THA-1001 transistor hearing aid showing the receiver cord plugged into the jack.

 

 

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Top left corner of the Toshiba Model THA-1001 transistor hearing aid showing the receiver cord unplugged.

 

 

 

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Front view of the receiver cord plug of the Toshiba Model THA-1001 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-1001 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 showing the name "Toshiba" in script (upper) and "Japan" lower.

 

 

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Side view of the receiver of the Toshiba Model THA-1001 transistor hearing aid showing the stock ear mold attached. This receiver was smaller than most receivers at the time at ⅝" in diameter (1.6 cm). It looked like a transistor radio ear bud of that era.

In contrast the model THA-1002 had a "normal-sized" receiver that was 13/16" (2.1 cm) in diameter.

 

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The stock ear mold (left) snapped on to the nubbin of the receiver as did the normal custom ear molds (here shown separated).

 

 

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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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View of the  Toshiba Model THA-1001 transistor hearing aid in its original box.

 

 

 

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Outside top view of the original box the  Toshiba Model THA-1001 transistor hearing aid came in.

 

 

 

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Outside bottom view of the original box the  Toshiba Model THA-1001 transistor hearing aid came in.

The inscription reads, "For Mailing: Use larger Carton with soft packing material to avoid breakage." (upper) and "1 Piece" and "Tokyo Shibaura Electric Co., Ltd." and "72, Horikawa-Cho, Kawasaki, Japan".

At the bottom is stamped the numbers "50007"—perhaps this is the serial number.

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Outside view of the original box the  Toshiba Model THA-1001 transistor hearing aid came in.

This box measured 4⅞" x 4¼" x 1 5/16" (12.5 x 10.8 x 3.3 cm).

 

 

 

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Front cover of the manual for using the Toshiba Model THA-1001 transistor hearing aid. This small manual was 12 pages long.

Here is the Guarantee form to mail in for this hearing aid.

 

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Front cover of the guide booklet, "You and Your Hearing Aid" for the Toshiba Model THA-1001 transistor hearing aid. It explains how to use this hearing aid. This small guide is just 10 pages long.

 

 

 


 

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