Zenith Model 75-X Transistor (Body) Hearing Aid
The Zenith Model 75-X transistor hearing aid was manufactured by the
Hearing Aid Division of the Zenith Radio Corp. beginning in December 1954. It was an
3-transistor aid. In October, 1955 it was modified with 4 transistors.
The Zenith Model 75-X measured 2¾" x 1¾" x 11/16" thick, and weighed
2¾ oz. with battery. The case was
polished aluminum.
The rectangular microphone grill was in the front center of the case
with the name "Zenith" below it.
When it was new the Model 75-X sold for $75.00.
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