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

Lafayette Model TR-7 (F-360) Transistor (Body) Hearing Aid

The Lafayette Model TR-7 (F-360) transistor body hearing aid was made for Lafayette Radio Electronics of Syosset, NY by Conny Industrial Co. Ltd, Tokyo, Japan in 1959.

Note that the Model TR-7 was sold by Conny under their own name, and by Magnatone and Lafayette under their respective names.

This 4-transistor hearing aid measured 2⅝" high x 1¾" wide x 11/16" thick (6.7 x 4.5 x 1.8 cm) and weighed 1.7 oz. (48 g) without the battery.

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Front view of the Lafayette Model TR-7 transistor body hearing aid showing the dark green, triangular-shaped microphone grill.

This hearing aid only cost $29.50 back in 1959. See it listed in the Lafayette catalog of 1959.

 

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Lower front view of the Lafayette Model TR-7 transistor body hearing aid showing the "private label" Lafayette name.


 

 

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Top view of the Lafayette Model TR-7 transistor body hearing aid showing the 4-position tone control (left), the two-prong receiver cord jack (center) and the 1-7 on-off/volume control (right).

The tone control symbols were as follows: F (flat frequency response), L (low tones stressed), M (medium tone) and H (high tones stressed).

 

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Top view of the Lafayette Model TR-7 transistor body hearing aid showing the two-pronged receiver cord plug and jack (shown unplugged). Note the unusually long pins on the receiver cord plug.

 

 

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Left side view of the Lafayette Model TR-7 transistor body hearing aid showing the "Mic" & "Tel" lever for switching between the microphone and t-coil. (shown in the microphone position). (Someone daubed green paint over the "Mic" position, probably as a reminder to set the lever there.)

 

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Rear view of the Lafayette Model TR-7 transistor body hearing aid showing markings for "Volume" (top left), "Tone" (upper right), t-coil (lower center), and on the battery door (bottom) "4 Transistors" and "Japan".

Note: this hearing aid was a very light lavender color—quite unusual for hearing aids of the day which were typically gold or silver colored.

 

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Bottom view of the Lafayette Model TR-7 transistor body hearing aid showing the battery compartment door in its closed position.
 

 

 

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View of the empty battery compartment of the Lafayette Model TR-7 transistor body hearing aid showing the battery door swung open from the bottom revealing the battery compartment.

 

 

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The Lafayette Model TR-7 transistor body hearing aid used a 1.5 volt size "N" carbon-zinc battery such as this Eveready E340E battery.

 

 

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Rear view of the receiver of the Lafayette Model TR-7 transistor hearing aid with the receiver cord plugged into it.
 

 

 

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Front view of the receiver of the Lafayette Model TR-7 transistor hearing aid showing the removable stock ear tip (shown here attached).
 

 

 

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Side view of the receiver of the Lafayette Model TR-7 transistor hearing aid showing 3 different sizes of removable stock ear tips.  You chose the size that best fit your ear canal.

 

 

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Front view of the receiver of the Lafayette Model TR-7 transistor hearing aid showing how the stock ear tip snapped onto the nubbin at the center of the receiver (shown here unsnapped).

 

 

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Close-up view of the receiver of the Lafayette Model TR-7 transistor body hearing aid showing the receiver cord unplugged from the receiver.

 

 

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The Lafayette Model TR-7 transistor hearing aid in its original carrying case.

 

 

 

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Outside view of the original carrying case for the Lafayette Model TR-7 transistor hearing aid. The case measured 4½" x 2¼" x 1½" (11.4 x 5.7 x 3.8 cm).

 

 

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Close-up view of the design embossed into the top of the case of the Lafayette TR-7 transistor hearing aid.

 

 

 

 

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