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 "Crusader" Transistor (Body) Hearing Aid

The Zenith "Crusader" Transistor Hearing Aid was manufactured by the Hearing Aid Division of the Zenith Radio Corp. beginning in September, 1955. It was an 4-transistor aid.

The Zenith "Crusader" was modified twice—first in August, 1958 [Mod I], and again in December 1958 [Mod II] (see next 2 pages).

The Zenith "Crusader" measured 2" x 1⅜" x ⅝" thick, and weighed 1˝ oz. with battery. The case was  gold-colored anodized aluminum.

The vertical rectangular microphone grill was in the front center of the case with the Zenith crest in the center.

The original "Crusader" had the word "ZENITH" centered across the bottom (as shown).

 

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Top view of the Zenith "Crusader" showing the 1 to 7 volume control/on-off switch (top front right). The 4-position tone control (top front left) is labeled "H" (high), "M" (mid), "L" (low) and "F" (full) . The receiver cord jack is in the center (rear).

The Zenith "Crusader" had black-colored controls with yellow letters and numbers on them. [So did the Mod I (next page).] In contrast, the Mod II had cream-colored controls with black letters and numbers on them (see page following the Mod I).

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Rear view of the "Crusader" showing the battery door which opened from the bottom of the case.

the Zenith "Crusader" used an "N" size 1.4 volt No. 401 mercury battery.

 

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Rear view of the Zenith "Crusader" hearing aid. Engraved into the back it reads "Zenith", "Crusader" and "the royalty of hearing".

In the top left corner is engraved the word "VOLUME", and in the top right corner the word "TONE".


 

 

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