Acousticon Model JR Carbon Hearing Aid
The Acousticon model JR was a single microphone carbon hearing
aid manufactured in 1923 by Dictograph Products, Inc. of New York, NY.
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Front view of the Acousticon Model JR showing the single carbon
microphone.
This carbon shot microphone measured 2⅝" in diameter by ¾" thick.
It weighed 2.6 oz.
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Front view of the Acousticon Model JR showing the single carbon
microphone adorned with a brooch for fastening it you a dress or blouse.
Some lady had added this, as it was not standard equipment.
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Rear of the Acousticon Model JR carbon microphone showing how the brooch
was fastened around the pocket
clip (top center).
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Close-up of the rear of the Acousticon Model JR carbon microphone showing the
model number (JR) at the top right. The serial number (1180) is visible
at the extreme right.
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Close-up of the bottom front of the Acousticon Model JR carbon microphone
showing the on-off switch/volume control. The person twisted the volume
control to increase or decrease the volume. The numbers indicated the
relative volume and ranged from 0 (off) to 10 (loud). |
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Top view of the Acousticon Model JR carbon amplifier showing the
Acousticon name. This amplifier measured 1⅜" wide by ¾" high by 11/16"
deep. It was very light—weighing only 0.4 oz. |
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Side view of the carbon amplifier of the Acousticon Model JR showing
the microphone (left) and earphone (right) plugs. The plugs on the bottom
plugged directly into the jacks on the top of the battery. Note that the
plugs are of different sizes to preserve correct polarity.
The Acousticon Model JR used a 4½ volt carbon-zinc battery such as
the
Model EP-129 General battery.
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To make it easy to plug things in correctly, you simply matched the dots. One dot matched the
earphone jack and plug.
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Two dots matched the microphone jack and plug.
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Close-up view of the microphone plug and jack. Note the microphone
connectors of the Acousticon Model JR had three pins. |
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Close-up view of the earphone plug and jack. Note the earphone
connectors of the Acousticon Model JR had two pins. |
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Close-up of the receiver and stock ear mold of the Acousticon Model
JR. The red rubber? on the top of the earmold was to make the tip a bit bigger
to give it a better fit in order to prevent feedback. |
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The receiver (left) and earmold (right) of the Acousticon Model JR
shown snapped apart.
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