TELEPHONE No. 125
Metal Central Battery wall telephone for outdoor use at cab ranks etc.
Comprises of a Transmitter No. 1 and Receiver Watch No. 1B.
The bell mechanism is a modified Bell No. 53A and is mounted, along with the gongs, inside the casing.
All the components are mounted on a separate chassis which includes two lightning protectors (they look like bulbs).
Telephone includes (1928):-
Telephone (Mark 234)
Telephone (Mark 235) also includes:-
The lock is a Key, Lock A.
Circuit Diagram - N225.
Circuit Diagram - C.B. 943.
Circuit Diagram - C.B. 1394 (Mark 235).
Drawing No. 8727 (dated 1927) & 8822.
Pictures are dated March 1928
Chassis outside housing
Two different views of the internal chassis
Last revised: November 20, 2021