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.

 

Conversation Tubes

Hard Rubber Conversation Tube (3)

This hard rubber conversation tube has no name or maker's marks on it. It was probably made somewhere around 1910.

The overall length of this hard rubber conversation tube was 42½" (107.9 cm). It weighed 8.4 oz. (238 g).

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Overall view of the hard rubber conversation tube. Notice that the tube itself tapers from an outside diameter of 13/16" (2.1 cm) at the bell end to 7/16" (1.1 cm) at the ear tip end.
 

 

 

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Close-up view of the hard rubber conversation tube showing the brown, woven fabric that covered the flexible metal tube.

 


 

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Close-up side view of the black hard rubber bell of this conversation tube. The bell was 3¾" (9.5 cm) long.

 


 

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Rear view of the black hard rubber bell of this conversation tube.

 


 

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Close-up view of the bell of this hard rubber conversation tube. The diameter of the bell is2 5/16" (5.9 cm).

 


 

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Close-up view of the inside of the bell of this hard rubber conversation tube. If you look closely, you can see the end of the spiral, flexible metal tube where it joins to the bell (center).

 


 

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Close-up view of the hard rubber earpiece of this conversation tube. The earpiece measured 4⅛" (10.5 cm) long. The curved earpiece made it more comfortable to hold and fit into your ear canal.

 

 

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Close-up of the ear tip of the hard rubber conversation tube showing the sound bore in the center. This hole was quite small at ⅛" (0.3 cm) in diameter.

 


 

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Ad from the 1908 Sears Roebuck catalogue. Prices ranged from $1.30 to $1.75 depending on the quality.

Another ad from the Down Brothers catalogue of 1915 (not shown) list conversation tube prices between $4.05 and $5.80.

 

 


 

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