|Battery Ringing Wall Telephones
for Railway Work
The battery ringing type of telephone is preferred by most railway companies, so that these instruments are specially designed for simplicity, efficiency and durability in such service.
This set is very suitable for long lines and short lines where the insulation is low.
It is fitted with a relay which operates with weak currents and automatically connects a local circuit for ringing the bell.
Separate speaking and ringing battery circuits.
Overall dimensions 12 x 7.25 x 6.75 inches
These telephones require a power source for the transmitter. Batteries were used and these would have been 3 volts and connected to MC (positive) and MZ (negative).
This phone cannot be connected to your normal exchange line as the bell will not ring and the transmitter requires batteries.
Last revised: February 15, 2021