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On-line 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. |
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Body Type Transistor Hearing Aids |
Maico Model BX "Universal II" Transistor (Body) Hearing Aid
The Maico Model BX was manufactured by Maico Electronics, Inc. of
Minneapolis, MN in 1967. The name "Maico" was derived from the
initials of the Medical Acoustic Instrument Company.
The Model BX was a modification of the Model AX produced in 1961. It
had a blue plastic front and a
stainless steel back. It measured 2" x 1⅜" x
½" thick.
The cord and receiver (earpiece) are shown to the right. An ear mold
(not shown) needs to be snapped to the receiver.
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Click picture for larger view |
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Top view of the Model BX showing the volume control (right) and T-switch
(black lever—left). It had 3 positions—"M" (microphone), "T" (t-coil) and
"O" (off). The jack (2 holes in the center) is where you plugged in the receiver (earpiece) cord.
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The Maico Model BX used a 1.4 volt Number 401 mercury battery. There
is a small sliding switch (above the battery—center) labeled "HC" (high
cut), "N" (normal) & "LC" (low cut). This sets the output to cut the
high frequencies, no change, or cut the low frequencies depending on the
kind of hearing loss the person had.
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Click picture for larger view |
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