Maico Model O (Transist-Ear) Transistor (Body) Hearing Aid
The Maico Model O (Transist-Ear) was manufactured by Maico Electronics, Inc. of
Minneapolis, MN. The name "Maico" was derived from the initials of
the Medical Acoustic Instrument Company.
This was Maico's first all-transistor model and used 3
transistors. It came out in February of 1953.
It was rather a strange shape—wider than tall. Its chrome case measured 1¾" x 2½" x
¾" thick.
The on-off/volume control is at the top right corner.
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