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| The 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! | | | |
| Click on the "General Information" button (top button above) for an overview and general information on this category of hearing aid. | | DePaul Obstetrical Stethoscope This DePaul obstetrical stethoscope was made somewhere around 1885 by an unknown manufacturer. It was made of hard rubber, and was very light—weighing only 1 oz. The length of the stethoscope was 5⅝". Don't confuse stethoscopes with the shorter ear trumpets and conversation tubes. See General Information—Conversation Tubes for further information on this subject. |  | Click picture for larger view | | |   | | | | | View of the bell end of the DePaul Obstetrical stethoscope. This is the end that went against the mother's abdomen. The large hollow bell let it "fit" to the curve of her abdomen without rocking which let the doctor hear the best. The bell was 2⅛" in diameter. |  | Click picture for larger view | | | | | The "ear" end of the DePaul Obstetrical stethoscope. This end is covered with a thin layer of ear wax from all the use it has seen over the years. The outside diameter was 2½".
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