Mallory M-505 Carbon-Zinc Hearing Aid "B" Battery
The Mallory M-505 22˝ volt carbon-zinc hearing aid "B" battery was
manufactured by the Mallory Battery Co in the USA. It was used in
vacuum tube hearing aids around 1950.
The M-505 carbon-zinc battery weighed 0.6 oz. (16 g), and measured
2" long
by ⅝" on each side (5.0 x1.6 cm).
|
 |
Click picture for larger view |
| |
 
|
| |
|
|
Front view of the Mallory M-505 battery showing the model number (M-505)
and voltage (22˝ volts).
|
 |
Click picture for larger view |
| |
|
|
Side view of the Mallory M-505 battery showing the polarity. The
positive terminal was at the top.
|
 |
Click picture for larger view |
| |
|
|
Top view of the Mallory M-505 showing the positive battery contact.
|
 |
Click picture for larger view |
| |
|
|
Bottom view of the Mallory M-505 showing the negative battery
contact.
|
 |
Click picture for larger view |
| |
|
(If a larger picture doesn't appear, you may have to
turn your pop-up blocker off)
|
|
|
