Teutonophone Carbon Hearing Aid
Teutonophone (later called Trutonophone because of anti-German
sentiment) was established in New York city in 1929. This hearing aid
was likely produced around 1930 or 1931.
The carbon microphone is permanently attached to the top of the
battery case. The battery case is 1⅞" wide x 1" thick x 3½" tall. The
whole assembly is only 6½" tall.
The complete unit including carrying case and battery weighs exactly
1 pound.
|
 |
Click picture for larger view |
| |
|
| |
|
|
The picture at the right shows the back of the carbon microphone. The
microphone is 2" in diameter and ½" thick.
|
 |
Click picture for larger view |
| |
|
|
The receiver was held in the ear by an ear hook that fits in a groove
around the circumference of the receiver. |
 |
Click picture for larger view |
| |
|
|
Close-up side view of the ear piece (receiver) showing the volume
control. You change the volume by screwing the front of the receiver a
bit to the left or right. |
 |
Click picture for larger view |
| |
|
|
The back of the ear piece (receiver) with the ear hook in place. |
 |
Click picture for larger view |
| |
|
|
The two plugs to plug the earpiece to the microphone. The plug on the
left is from the microphone. Notice the on/off slider switch on the top
of the plug (left side). Unlike the plugs of today, each piece had one
plug and one socket for the matching one of the other piece.
|
 |
Click picture for larger view |
| |
|
|
The inside of the battery compartment. The hinged lid is at the bottom
of the battery case. |
 |
Click picture for larger view |
| |
|
|
The Teutonophone No. 1 battery only weighed 3½ oz., and measured 1⅝"
by ¾" by 2⅝" high. |
 |
Click picture for larger view |
| |
|
|
The inside of the Teutonophone carrying case. The carrying case measures
7½" x 2¾" x 3" tall. |
 |
Click picture for larger view |
| |
|
|
The carrying case for the Teutonophone carbon hearing aid. The
hearing aid could be left in the case with the mic showing though the
hole at the front and used this way.
|
 |
Click picture for larger view |
| |
|
(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
|
|
|
