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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