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

Metal Hard Rubber Conversation Tube

This conversation tube has a coated metal bell  and an ear piece of hard rubber. The spiral tube, which is narrower than most of the conversation tubes at only 0.5 inches in diameter, is 40 inches long.

It is covered with a very finely woven cloth material.

This conversation tube dates from somewhere around 1900.

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Another view of the metal hard rubber conversation tube showing a side view of the bell. The bell is 2¾" long and 1 7/8" outside diameter.

Because of the small bell and tube, this conversation accentuates the higher frequency sounds and suppresses the bass to some extent.

 


 

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