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.

 

Vacuum Tube Hearing Aids: 1921-1953

Acousticon A-152 (International) Vacuum Tube Hearing Aid

The Acousticon A-152 (International) hearing aid was produced by Dictograph Products, Inc. of New York in 1950.

It featured a case of gold anodized aluminum. The hearing aid measured 3⅛” by 2⅜” by 13/16” and weighed 5˝ oz. with the batteries installed.

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The Acousticon A-152 showing the volume control/on-off switch (top left corner), the receiver cord plug (center) and the tone control (top right).


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The Acousticon A-152 was powered by a 1.4 volt RM-3 "A" cell and a 22˝ volt 505E "B" battery.

 

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Rear view of the Acousticon A-152.

 

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The Acousticon A-152 with an air conduction receiver and ear mold.

 

 

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Close-up of the Acousticon A-152 receiver and receiver cord plug. Notice the rather unusual flat prongs used in this model, rather than the typical round pins used in most other hearing aids of this time.

 

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Top view of the Acousticon A-152 showing the unusual flat-pronged receiver cord plug and and corresponding jack on the top of the hearing aid (center).
 

 

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The Acousticon A-152 could also come with a bone conduction transducer.  A head band (not shown) held the transducer tight to the bone behind the ear which allowed the wearer to hear via bone conduction.

 

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Bottom view of the Acousticon A-152 showing the serial number.

 

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Right side view of the Acousticon A-152 showing two plugged holes. The plastic plugs could be removed so you could plug in a couple of optional devices (see below).

 

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Right side view of the Acousticon A-152 showing the two holes where you could plug in either a "Radion" radio receiver (see below) or an external microphone (see bottom 2 pictures).

 

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The Acousticon A-152 with the Radion attached to the right side of the hearing aid. Click here for more information on the Acousticon Radion.

 

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Another most interesting feature of the Acousticon A-150 (and also the A-90, A-100, A-152) was that instead of plugging in the Radio, you could also plug in an external microphone that looked just like a wrist watch. This allowed you to keep the body aid hidden--because the sound would then be picked up by the microphone hidden in the watch-like casing. A cord ran up the sleeve to the hearing aid in an inside pocket.

Here is an ad (bottom left corner) for this "Wrist-Ear" external microphone published in the Sunday Morning edition of The Democrat and Leader newspaper of Davenport, Iowa on July 17, 1949.

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Here is a close-up of this ad so you can read it easier.

Here is a link to a photo of the actual "Wrist Ear" in the Kenneth W. Berger Hearing Aid Museum.


 

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