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

Widex Model 661-X (Model 45 "Corona" USA) Transistor (Body) Hearing Aid

The Widex Model 661-X transistor (body) hearing aid was made by  Toepholm & Westermann A/S of Copenhagen, Denmark and sold under the trade name of Widex. It was distributed in the USA by the Widex Hearing Aid Co., Inc.

Widex used two model number series. In most of the world, this hearing aid was called the Model 661-X. However, in the USA, the Model 661-X was sold as the Model 45 "Corona".

The Widex Model 661-X used 8 transistors and was manufactured in 1966.

It measured 2⅜" x 1 7/16" x 5/16" (6.0 x 3.6 x 0.8 cm) and weighed 1.0 oz. (29 g) without battery.

 

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Front view of the Widex Model 661-X transistor hearing aid showing the crown-shaped microphone grill and the wire pocket clip.

Near the bottom center on the battery compartment cover is stamped the manufacturer's location "Denmark". On the other side is stamped "Widex X". Since the battery compartment cover fits either way, sometimes the "Denmark" is shown on the front, whereas, it really should be on the back and the "Widex X" showing to the front.

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Rear view of the Widex Model 661-X transistor hearing aid showing the O-M-T legend for the on-off/microphone/t-coil switch (top left corner) and the H (high-frequency emphasis), N (normal) and L (low-frequency emphasis) tone switch (near bottom center).

Stamped on the battery compartment cover is "Widex X".
 

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Top view of the Widex Model 661-X transistor hearing aid showing the 1-9 volume control (left), the microphone grill (center) and  the on/off, microphone and t-coil switch (right) shown in the off position.


 

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Bottom view of the Widex Model 661-X transistor hearing aid showing how the battery compartment simply pulled off the bottom of the hearing aid.

 


 

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View of the inside of the battery compartment of the Widex Model 661-X transistor hearing aid showing the make (Widex), the model number (661-X), the country where made (Denmark) and the serial number (572134).

The 1.4 volt mercury "N"-sized (or number 401) battery, such as the Duracell RM-401H mercury battery, went with the positive terminal to the right.
 

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Right side view of the Widex Model 661-X transistor hearing aid showing the two-pin receiver cord jack (center).

 

 

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View of the receiver and receiver cord of the Widex Model 661-X transistor hearing aid. A hard plastic ear mold (not shown) snaps onto the nubbin in the center of the receiver.

The receiver cord plugged into the jack in the above picture.


 

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View of the Widex Model 661-X transistor hearing aid in its original case.

 

 

 

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View of the outside of the attractive imitation alligator-skin case of the Widex Model 661-X transistor hearing aid.

 

 

 

 

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