The Hearing Aid Museum

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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.

Hearing Testing Equipment

This tuning fork was manufactured by Jetter & Scheerer in Germany—likely in the 1940s.

Tuning forks are designed to ring (hum) at a given test frequency. This tuning fork vibrates at 435 Hz (A1 on the piano).

Notice the flattened (left) end. This was so it could be put against a person's forehead when doing hearing testing.

Tuning forks have been used for a lot of years in hearing testing and indeed are still used today for the same purpose.

Tuning forks are used to give the Rinne and Weber tests which help determine whether a person has a conductive or sensorineural hearing loss.

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