Acousticon Model A-600 "Privat Ear" Behind-the-Ear Hearing Aid The Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid was produced by Dictograph Products Inc. of New York, NY in 1958. This 3-transistor hearing aid design was such that there were both left and right models. Shown here is the model for the right ear. This hearing aid measured 1⅞" x ⅝" x 7/16" (4.8 x 1.7 x 1.1 cm). |  | Click picture for larger view | | |  | | |
| Top view of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing how the ear hook was fastened to the hearing aid body. |  | Click picture for larger view | | | |
Right side view of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing the ear hook. Missing is the ear mold that slipped on to the end of the ear hook.
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| Lower front view of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing the position of the microphone port (small black hole near center). |  | Click picture for larger view | | | |
| View of back of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing the volume control slider/on-off switch (in the "off" position. |  | Click picture for larger view | | | |
| Rear view of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing the round battery compartment door (center) and the sliding latch on the door to hold it shut. The serial number (13013) is upside down at the very top. |  | Click picture for larger view | | | |
| View of back of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing the battery compartment door opened. This hearing aid used a No. 675 mercury battery. |  | Click picture for larger view | | | |
| Close-up view of bottom back of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid showing the make (Acousticon) and model (A600) of this hearing aid. Acousticon referred to this hearing aid as the "Privat Ear". This name was also used for models A-610 and A-620. |  | Click picture for larger view | | | |
| View of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid in it's carrying case.
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| Outside view of the attractive imitation alligator leather carrying case of the Acousticon Model A-600 "Privat Ear" behind-the-ear hearing aid. The case measured 3 5/16" x 2 9/16" x 1⅜ " (8.4 x 6.5 x 3.5 cm).
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