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 "Command 100" (ZP-50) Behind-the-Ear Hearing Aid

The Zenith "Command 100" (ZP-50) behind-the-ear hearing aid was manufactured by the hearing aid division of the Zenith Radio Corp in 1975. It had AGC (automatic gain control).

The Zenith "Command 100" began with serial number D10001. This particular hearing aid was serial number D19996.

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Back

 

Rear view of the Zenith "Command 100" showing the microphone port (notch at the top), the volume control wheel (center left) and the projection on the battery door that acted as the on-off switch (bottom) .


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Side view of the Zenith "Command 100" showing how the battery door swings out from the bottom. This hearing aid used a No. 13 battery.

 

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Side view of the Zenith "Command 100" showing its size.

 

 

 


 

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