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.

 

Eyeglass Style Transistor Hearing Aids: 1954-1990

Acousticon Model A-235 Eyeglass Hearing Aid

The Acousticon Model A-235 eyeglass hearing aid was manufactured by Dictograph Products, Inc. of New York in October, 1956. This was Acousticon's first eyeglass hearing aid with all the electronics in one temple-piece.

What is cool about this pair of glasses is that not only are they very early eyeglass hearing aids, but that there are two separate hearing aids, one in each temple piece. This was unusual back in the mid 1950s where it was considered only necessary to wear a hearing aid is one ear.

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Rear view of the Acousticon Model A-235 eyeglass hearing aid showing the thick temple-pieces required to hold all the electronics.

This hearing aid only used two transistors.

 

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From the front, the Acousticon Model A-235 eyeglass hearing aid looked like any other pair of glasses.

 

 

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A side view revealed the fat temple-pieces of the Acousticon Model A-235 eyeglass hearing aids.

 

 

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Close-up view of the microphone port of the Acousticon Model A-235 eyeglass hearing aid. The microphone was located near the tip of the temple piece behind the ear and faced out (sideways).
 

 

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Close-up view of the sliding volume control of the Acousticon Model A-235 eyeglass hearing aid. The volume control was on the top of the temple-piece, just ahead of the wearer's ears.

 

 

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Close-up view of the nubbin of the Acousticon Model A-235 eyeglass hearing aid where the ear mold tube attached to the aid. It was on the underside, just forward of the ear. (Ear mold/ear mold tube not shown.)

 

 

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Close-up view of the middle inside of the temple-piece of the Acousticon Model A-235 eyeglass hearing aid showing the Acousticon logo (top), the name "Acousticon" and below it the model number (A-235).

 

 

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On the inside near the tip of the temple-piece of the Acousticon Model A-235 eyeglass hearing aid were stamped the words "Pats. Pending" and "Made in U.S.A.".

 

 

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The serial number (60402) of the Acousticon Model A-235 eyeglass hearing aid was crudely engraved into the bottom of the temple-piece below the microphone port.

 

 

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The battery compartment door of the Acousticon Model A-235 eyeglass hearing aid was unique—it was mounted on the inside and forward of the midline of the temple-piece and swung inward. Here shown in its closed position.

 

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Close-up view of the battery compartment of the Acousticon Model A-235 eyeglass hearing aid showing how the battery compartment door swung open to the right.

 

 

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Close-up view of the battery compartment of the Acousticon Model A-235 eyeglass hearing aid showing a No. 675 mercury battery inserted there.

 

 

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Sales flyer included with the Acousticon Model A-235 eyeglass hearing aid showing the services provided by the hearing aid dispenser.

 

 

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Obverse side of the sales flyer included with the Acousticon Model A-235 eyeglass hearing aid giving a 25 cent discount on a package of No. 675 hearing aid batteries.

 

 

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The Acousticon Model A-235 eyeglass hearing aid in its case.

 

 

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Outside view of the Acousticon Model A-235 eyeglass hearing aid case.

 

 

 


 

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