Radioear Model 820 Transistor Body Hearing Aid
The Radioear Model 820 hearing aid was manufactured by Radioear
Corporation of Pennsylvania, in February, 1953. It was Radioear's first
transistor hearing aid.
This 3-transistor hearing aid measured 2⅞" by 1⅞" and is
⅞" thick. It weighed 4˝ oz.
without its battery.
It had a chrome front and back with cream plastic sides and top. |
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Top view of the Radioear Model 820 showing the volume control/on-off
wheel (left), the t-coil/tone switch (center) shown in the t-coil
position and the receiver jack (with receiver cord plugged in) (top
right).
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The back of the Radioear Model 820. Notice the pocket clips on each
side. |
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The battery compartment of the Radioear Model 820. It used a single
AA-sized battery. The recessed screw (mid left) is to adjust the tone
for "L" (low) and "H" (high) frequency emphasis.
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The Radioear Model 820 in its original case. |
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The original case for the Radioear Model 820.
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