Eveready 507E Hearing Aid "B" Battery
This
Eveready 30 volt Mini-Max Model 507E hearing aid "B" battery was used in
1-piece vacuum tube hearing aids in the late 1940s and early 1950s.
It
weighed 0.8 oz., and measured 2 9/16" by ⅝" by 9/16".
|
 |
Click picture for larger view |
| |
 
|
| |
|
|
Rear view of the Eveready 507E battery showing the positive and negative
ends.
|
 |
Click picture for larger view |
| |
|
|
Side view of the Eveready 507E battery.
|
 |
Click picture for larger view |
| |
|
|
Top view of the Eveready 507E battery showing the red color-coded
positive terminal.
|
 |
Click picture for larger view |
| |
|
|
Bottom view of the Eveready 507E battery showing the blue color-coded
negative terminal.
|
 |
Click picture for larger view |
| |
|
(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
|
|
|
