Beltone "Slimette" Eyeglass Hearing Aid The Beltone "Slimette" eyeglass hearing aid was made by Beltone Electronics Corporation of Chicago, IL in 1957. All the electronics were housed in one temple piece. Thus, these eyeglass hearing aids could be configured for one ear, or both ears. The hearing aid pictured here is housed in the right temple-piece. The thick left temple-piece is a dummy made to look the same as the other side. The Beltone "Slimette" was a 3-transistor aid. |  | Click picture for larger view | | |   | | | |
| View of the rear portion of the right temple piece of the Beltone "Slimette" showing the volume control/on-off switch on the top (upper right). |  | Click picture for larger view | | | |
| The Beltone "Slimette" was unusual in that there was a tiny circuit board in the hollow temple piece ahead of the ear. Here is the top view showing the electronic components. |  | Click picture for larger view | | | |
| Rear view of circuit board in the temple piece (left). The metal plate on the behind-the-ear part of the temple piece protected the microphone, receiver and battery. |  | Click picture for larger view | | | |
| View of the Beltone "Slimette" showing how the electronics board slides out of the hollow temple piece. |  | Click picture for larger view | | | |
| View of the Beltone "Slimette" in its "open" position. |  | Click picture for larger view | | | |
| Rear inside view of the right temple piece of the Beltone "Slimette" showing the metal faceplate that covered some of the electronics. It is engraved with the words "Beltone" and "Slimette". The battery door swung up (forward) from the top. This hearing aid used a No. 400 battery. The ear mold tube connected to a nubbin at the bottom (center). |  | Click picture for larger view | | | |
| The Beltone "Slimette" in its original case. |  | Click picture for larger view | | | |
| Outside view of the case of the Beltone "Slimette".
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