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.

 

Behind the Ear (BTE) Transistor Hearing Aids

Zenith "York" (ZP-90)Behind-the-Ear Hearing Aid

The Zenith "York" (ZP-90) behind-the-ear hearing aid was manufactured by the hearing aid division of the Zenith Radio Corp in 1974. It was a 3-transistor hearing aid.

Notice the microphone port (bottom center). This hearing aid used an electret microphone.

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Side view of the Zenith "York" showing how the battery door swings up. This hearing aid used a No. 675 battery.

The volume control wheel is on the right side above the battery door.

The 3-position lever (below the battery door) is likely the tone control.

 

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Extreme close-up view of the bottom of the switch (top left) and the icons below it, presumably meaning "off", "half" and "full" tone.

 

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Side view of the Zenith "York" showing its size.

 

 

 


 

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