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 Extended Range II" Transistor (Body) Hearing Aid

The Zenith "Super Extended Range II" transistor hearing aid was manufactured by the Hearing Aid Division of the Zenith Radio Corp. beginning in June, 1968.

The Zenith "Super Extended Range II" hearing aid measured 2˝" x 1 11/16" x ⅝" thick (6.4 x 4.2 x 1.6 cm), and weighed 3.1 oz. (88 g) with battery.

The case was stainless steel with a dark brown plastic top and bottom.

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Front view of the Zenith "Super Extended Range II" hearing aid showing the Zenith name (lower left) and the Zenith crest to the right of it in the brown plastic stripe.



 

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Top view of the Zenith "Super Extended Range II" hearing aid showing the 1-7 volume control/on-off switch (left), the square microphone grill (center) and the 3-position "M" (microphone), "B" (both) and "T" (t-coil) slider switch (right).

 

 

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Left side view of the Zenith "Super Extended Range II" hearing aid showing the 3-pin receiver cord jack (center) and the receiver cord plug.

 

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Left side view of the Zenith "Super Extended Range II" hearing aid showing the receiver cord plugged in.

 

 

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Right side view of the Zenith "Super Extended Range II" hearing aid showing the 4 position (A, B, C, D) sliding tone control (left of center).

 

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Rear view of the Zenith "Super Extended Range II" hearing aid showing the pocket clip (top).

 

 

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Bottom view of the Zenith "Super Extended Range II" hearing aid showing the brown plastic battery compartment door closed. Engraved on the door  are the words "ZENITH" and below that "Super Extended Range II".

 

 

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Bottom view of the Zenith "Super Extended Range II" hearing aid with the battery compartment door opened to the right showing the empty battery compartment. Note the serial number (TH978) on the left.

 

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Bottom view of the Zenith "Super Extended Range II" hearing aid with the battery compartment door opened showing an Eveready "N" size 1.4 volt No. E401E mercury battery in place.

 

 

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View of the back of the receiver of the Zenith "Super Extended Range II" hearing aid with the receiver cord plugged in.

 

 

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Close-up of the receiver of the Zenith "Super Extended Range II" hearing aid showing the unplugged3-pronged receiver cord plug and jack.

Note the green corrosion on the pins. This was one reason for poor contact and intermittent operation. Regular maintenance was needed to keep everything clean and working properly.

 

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Side view of the receiver of the Zenith "Super Extended Range II" hearing aid showing the ear mold snapped to it.

 

 

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Front view of the receiver of the Zenith "Super Extended Range II" hearing aid showing the ear mold snapped apart.

 

 

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The Zenith "Super Extended Range II" hearing aid came with a small bottle of spare parts.

There were several red plastic washers to ensure the ear mold had a tight fit to the receiver to help prevent feedback. You could use one or several red washers as needed.

In addition there were 4 color-coded "earphone inserts" with varying size of holes in their centers. They fit into the receiver nubbin to "reduce the impact of sudden loud sounds for the individual with 'tender' ears".

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Front view of the receiver of the Zenith "Super Extended Range II" hearing aid showing the large-holed black earphone insert in the center of the receiver and the three smaller-holed colored earphone inserts below.

Note the red washer in place.

 

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The Zenith "Super Extended Range II" hearing aid in its original case.

 

 

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Top view of the carrying case of the Zenith "Super Extended Range II" hearing aid. The case measured 6˝" x 3 5/16" x 1 1/16" (16.5 x 8.5 x 2.8 cm).

 

 

 

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