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

Microson Model 23 Transistor (Body) Hearing Aid

The Microson Model 23 was made by GAES of Barcelona, Spain in 1970. It had a stainless steel case over a black plastic chassis.

This hearing aid was 2⅝" x 2⅛" x ⅝" and weighed 3˝ oz. without batteries.

It had provision for using two receivers at the same time.
 

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Top view of the Model 23 showing the on-off/volume control (left), the "M" (microphone) and "T" (t-coil) switch, the microphone grill and the receiver cord jack on the right.

 

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This was a somewhat unusual hearing aid in that it was designed to be used with receivers in both ears. Notice in the picture to the right that there are two receiver cord jacks—one on the top corner and the second one just below it on the side near the top.

 

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The whole back swung to the left to reveal the battery compartment. This hearing aid used two 1˝ volt AA cells.

Notice on the right the three adjustment screws. The "Bal." at the top is to balance the volume between the two receivers.. Below it on the left is the 2-position gain adjustment, and to the right of the gain control is the 3-position tone control (high, normal and low frequency emphasis).

 

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The Microson Model 23 in its original wooden case.

 

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The Microson Model 23 came in an attractive wooden case.

 

 

 

 

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