Radioear Model 41 Type C "Special" Vacuum Tube Hearing Aid
The Radioear Model 41 Type C "Special" was a 3-vacuum tube, 2-piece hearing aid
manufactured by E. A. Myers & Sons of Pittsburg, PA in 1942.
The microphone grill consisted of 4 vertical slots (top). The case
was an early black plastic.
It measured 3⅞" x 1⅞" x ¾".
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The back of the Radioear Model 41 Type C "Special" In the center, is
inscribed: Type C
SPECIAL
RADIOEAR
Forty-one
Pats. Pending
M6501
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View of the upper back of the Radioear Model 41 Type C "Special" showing
the off/volume control (upper right) in the off position. Near the
bottom left is a three-position screw—probably a high-medium-low tone control.
In the center and hanging down is the pocket clip. The hole in its
top is so a lanyard could be threaded through it to wear it around your
neck.
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View of the lower back of the Radioear Model 41 Type C "Special" showing
a rather unusual switch. The upper "Bat. New" position (shown) was used
when using a new battery. When the battery was nearing the end of its
life, you pushed the lever down to the "Bat. Used" position. This
probably switched out a resistor to increase the dropping battery
voltage to increase the volume again. The Model
41 apparently used a special 34½ volt "B" battery and
presumably the normal 1½ volt "A" battery. |
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Bottom view of the Radioear Model 41 Type C "Special" showing 3 jacks
(left) for the battery cord plug, and the 2 jacks (right) for the
receiver cord plug. This hearing aid used a crystal receiver (not
shown).
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