Champion Model 215 "Featherweight" Vacuum Tube Hearing Aid
The Champion Model 215 "Featherweight" vacuum tube hearing aid
was the second and final hearing aid made by Max & Prindle of Fort
Worth, Texas in 1952.
This hearing aid has a gold-colored anodized aluminum case. It
measures 2¼" x 2" x ¾" thick. Without batteries it weighs 2¼ oz.
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Top view of the Champion 215 showing the receiver cord jack (middle) and
the on/off-volume control wheel (right).
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Rear view of the Champion 215 showing how the back slides off in two
sections revealing the battery compartment (right) and electronics
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Inside view of the Champion 215 with the plastic cover over the
electronics section removed revealing the three tiny Raytheon vacuum
tubes. It was powered by a 404E (or 0814)15 volt "B" battery, and an
RM-1 1.4 volt "A" battery.
The red tab (top right) served two purposed. First, it was an easy
way to pull the batteries out to change them. Second, the metal band
part served as the positive lead for the "A" battery. The "B"
battery went in the top left corner and the "A" battery in the top right
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The Champion 215 in its original case. |
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The case (closed) for the Champion 215.
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