Danavox (Aditone) Model 547-HC2a Mod I Transistor Hearing Aid
The Danavox (Aditone) Model 547-HC2a Mod I transistor body hearing
aid was made by Danavox International A/S of Copenhagen, Denmark in
1954. It was sold under the "Aditone" trade name in Germany. Note: it was sold in the USA under the trade name of "Audibel"
rather than "Aditone".
It was a rather
large hearing aid measuring 3⅜" x 2¼" x ¾" (8.7 x 5.7 x 1.9
cm). The body aid without batteries weighed 3.6 oz. (104 g).
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Front view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the fancy microphone grill on each side of the
pocket clip. The original HC2a had a small horizontal oval microphone
grill and a gold-colored front. |
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Top view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the volume control wheel (left), the two-pronged
receiver cord jack (center), the M (microphone), T (telecoil) and O
(off) switch (upper right) and the 3-position tone control (lower right)
represented by the 1, 2 or 3 white dots. |
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Front view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the name "Aditone" (bottom right). Aditone Tvermoes
KG was a German subsidiary of Danavox, based in Krefeld, Germany.
Aditone was the original trade name of Danavox and later when they
changed the trade name to Danavox, they continued to use the Aditone
trade name in Germany. |
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Right side view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the volume control wheel (right).
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Left side and bottom view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the hinge for the battery door (right).
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View of the top and front of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the pocket clip. The two rivet heads held the pocket
clip in place. You could easily pull the clip off and mount it on the
back if you so chose. |
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Rear view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the deep wine-colored back, a rather unusual color
for hearing aids. At the bottom is the swing-down battery door.
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Rear center view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the model number (547 HC2a) and the serial number
below it (5C 2709). Below that is the slider button to open the
battery compartment door. The battery door was spring-loaded so when you
pushed the clip it automatically swung open.
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Lower rear view of the Danavox (Aditone) 547-HC2a Mod I transistor body
hearing aid showing the battery compartment. This hearing aid took two
No. 1015 (AA size) 1½ volt batteries such as the
Eveready 1015-E carbon-zinc battery. Note the spring clips to hold
each battery are high on the positive terminal (right) side (to touch
the center of the battery) and low on the negative terminal (left) side
so they couldn't reach the positive terminal.
This was an ingenious way to prevent the batteries from working if
they were inadvertently put in with the polarities reversed. |
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