Eveready 412E Hearing Aid "B" Battery
This
is an Eveready 22½ volt Mini-Max hearing aid "B" battery used mainly in
the larger 1-piece vacuum tube hearing aids in the 1940s and 1950s.
It
weighed 1¼ oz., and measured 2" by 1" by ½".
|
 |
Click picture for larger view |
| |
 
|
| |
|
|
Ad in the Saturday Evening Post, January 22, 1949, showing the Eveready 412E 22½ volt "B" battery (right). Back then,
this battery sold for $1.05. It is shown paired with the then new (and
revolutionary) 1½ volt "A" battery— the Eveready 1005E "air
breathing" battery.
|
 |
Click picture for larger view |
| |
|
(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
|
|
|
