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.

 

Eyeglass Style Transistor Hearing Aids: 1954-1990

Radioear Model 930 Eyeglass Hearing Aid

The Radioear Model 930 eyeglass hearing aid was manufactured by Radioear Corporation of Pennsylvania, in 1965.

It was a 4-transistor hearing aid and had a built-in t-coil.

All the electronics were built into the right temple-piece. The other side was made to look the same shape, but contained no electronics.

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Back

 
Front view of the Radioear Model 930 eyeglass hearing aid. This was quite an attractive aid in its day.


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The underside of the right temple-piece showing the location of the downward-facing microphone (the hole immediately above the "2" in the serial number (ON241).

To the left of the microphone is the t-coil switch. It is shown in the "T" position.

 

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A close-up of the back of the Radioear Model 930 showing 2 "bumps". The leftmost "bump" is for pushing the battery compartment door ajar. This acted as the on-off switch, and also a means so you could open the door the rest of the way to replace batteries.

Immediately to the right of this "bump" is the volume control wheel.

 

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The end of the temple-piece showing the swing-out battery compartment. This hearing aid used at S-76 silver oxide battery.

Incidentally, the other (dummy) temple-piece, had a similar swing-out battery compartment to store/carry a spare battery.

 


 

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