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.

 

Body Type Transistor Hearing Aids

Zenith "Super Royal T" Transistor (Body) Hearing Aid

The Zenith "Super Royal T" transistor hearing aid was manufactured by the Hearing Aid Division of the Zenith Radio Corp. in 1953. It was a 3-transistor aid.

Its gold anodized aluminum case measured 3" x 2¼" x ⅞" thick, and weighed a total of 5 oz. with batteries.

The microphone grill was a black vertical rectangle (upper front center)

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Front view of the Zenith "Super Royal T" hearing aid (earlier version) showing the rectangular microphone grill (upper center) with a pocket clip on each side.

Below is the name "Zenith" and at the bottom is the phone logo and the words "phone magnet" indicating that this hearing aid had a t-coil.

This earlier version's serial number was T200530.

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Front view of the Zenith "Super Royal T" hearing aid (later version). The only difference is the pocket clips have been replaced by a wire pocket clip that flanks the microphone grill

This later version's serial number was T213269. So sometime between these two serial numbers, they switched the pocket clip style.

 

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Top view of the Zenith "Super Royal T" hearing aid showing the 4-position tone control (left), the receiver cord jack (center) and the 1-7 volume control/on-off switch (right).

The tone control was labeled "M" (Mid), "L" (low), "F" (full), "H" (high).

Here is a copy of the User's Manual for the Zenith Super Royal T hearing aid.
 

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Right side view of the Zenith "Super Royal T" hearing aid showing the volume control (left), the external microphone jack (left of center), the "TEL" (telephone or t-coil) and "MIKE" (microphone) switch (center) and the thumb-nail slot (labeled "LIFT") to open the battery compartment door (right of center).

 

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Right side view of the Zenith "Super Royal T" hearing aid showing the volume control (left), the external microphone jack (left of center), the "TEL" (telephone or t-coil) and "MIKE" (microphone) switch (center) and the thumb-nail slot (labeled "LIFT") to open the battery compartment door (right of center).

 

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The back of the Zenith "Super Royal T" hearing aid swings to the right revealing the battery compartment (bottom center)

The serial number is located directly above the right side of the battery compartment (written vertically). The serial number is T200530.

 

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Inside view of the battery compartment of the Zenith "Super Royal T" hearing aid showing the two No. RM-1 1.4 volt mercury hearing aid batteries hooked in series (bottom center).

 

 

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Rear view of the Zenith "Super Royal T" hearing aid. Engraved into the upper back, on separate lines, are the words, "Zenith", "Super Royal", "T", "the royalty of hearing".

 

 

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Side view of the receiver of the Zenith "Super Royal T" hearing aid showing the two-pronged plug of the receiver cord and corresponding jack on the receiver.

 

 

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Back view of the receiver of the Zenith "Super Royal T" hearing aid showing the receiver cord plugged in.

 

 

 

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Front view of the receiver of the Zenith "Super Royal T" hearing aid and the hard clear plastic ear mold shown here snapped apart.

 

 

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Side view of the receiver of the Zenith "Super Royal T" hearing aid shown here with the ear mold snapped to it.

 

 

 

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The Zenith "Super Royal T" hearing aid could also use a bone conduction transducer instead of a receiver. Shown here is the front view of the bone conduction transducer that just happened to come with the later version.

The front part was held tightly against the mastoid bone behind your ear so the amplified sound vibrations would be conducted through your skull to your inner ear.

The upper number (center) is 40215—presumably the serial no. Below is the name "Zenith" and at the bottom is the model number "417".

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Back and bottom view of the bone conduction transducer of the Zenith "Super Royal T" hearing aid showing how the standard receiver cord plugged into it.

 

 

 

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Side view of the bone conduction transducer of the Zenith "Super Royal T" hearing aid with the receiver cord plugged into it. The hole on the side (and one on the other side) was for headband (not shown) to snap into to hold the transducer in place.

 

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The Zenith "Super Royal T" in its original carrying case (older version).

 

 

 

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The Zenith "Super Royal T" in its original carrying case (newer version).

 

 

 

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The Zenith "Super Royal T" in its original carrying case (older version).

 

 

 

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Top view of the Zenith's "Super Royal T" carrying case (newer version).

 

 

 

 

 

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