Acousticon Model SRB Carbon Hearing Aid
The Acousticon model SRB was a single microphone
carbon hearing aid manufactured between 1910 and 1928 by the General
Acoustic Company, which later became Dictograph Products, Inc. It cost
$40.00.
The earphone is on the right and the carbon microphone is on the
left.
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The reverse view of the Acousticon SRB, showing the back of the
earphone (left) and the back of the carbon microphone (right).
The carbon microphone is
3 5/16" in diameter. It featured a 6-step volume control (bottom half).
The volume is shown at almost the loudest setting.
The metal clip (top center) secured it to
the user's clothing.
The on-off switch is on the earphone. There is a sliding bar (going
from about 10 o'clock to 2 o'clock through the earphone). The picture
shows the shiny on/off push button sticking out at 2 o'clock (the
on position).
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The Acousticon came with a leather storage case (right). |
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The inside of the storage case showing the compartments for the
various components.
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The Acousticon SRB came with a small handle that attached to the earphone
if you wanted to hold it up to your ear. |
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The handle unhooked from the earphone for storage, or if you wanted
to use the earphone with a headband. |
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The earphone with the headband attached.
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