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.

 

Miscellaneous Items

Mallock-Armstrong Ear Defenders

The Mallock-Armstrong ear defenders were designed as ear protection against loud impact noise.

According to the instruction sheet for using them, they were supplied in the United Kingdom to the Admiralty, Air Ministry, Ministry of Aircraft Production and the Ministry of Supply for issue to their personnel during World War II.

In actual fact, the Mallock-Armstrong Ear Defenders had a much longer history. "Attempts to limit gunfire noise by mechanical devices commenced in 1905, leading to Mallock-Armstrong plugs for use in the First World War." according to the Journal of the Acoustical Society of America. Supp. 1, Vol. 81, 1987, p. S4.

For some intriguing information on how these Ear Defenders worked, see the British Medical Journal, January 2, 1915. The principle is simple, clever and effective.

The Ear Defenders shown here probably date from around the 1940s.

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The Mallock-Armstrong ear defenders in their original box. The white "gizmo" between the two is a wax remover.

 


 

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