TELEPHONE No. 125


A metal clad, 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).

Introduced circa 1927.

Telephone includes (1928):-
1 x Bell No. 53A (modified).
2 x Bell-gong No. 7.
4 x Clips, Protector G No. 2.
1 x Condenser, M.C. No. 22.
2 x Cord, Instrument No. 116.
1 x Cord, Instrument No. 222, waterproof.
1 x Hook, Receiver C.
2 x Protectors G.
1 x Receiver, Watch No. 1B.
1 x Transmitter No. 1.
1 x Lock No. 5.

Telephone (Mark 234) includes:-
2 x Bell-gong No. 7.
1 x Capacitor, Paper No. 22.
1 x Hook, Receiver C.
1 x Bell No. 53A (Modified).
1 x Receiver, Watch No. 1B.
1 x Transmitter No. 1.
2 x Protector G.
4 x Clip, Protector G No. 2.
1 x Cord, Instrument No. 222, Waterproof.
1 x Coil, Induction No. 14.
1 x Lock No. 5.

The lock is a Key, Lock A.

Supersedes Telephone No. 75.
Superseded by Telephone No. 145.

Circuit Diagram - N225.

Circuit Diagram - C.B. 943.

Circuit Diagram - C.B. 1394 (Mark 235).

Drawing No. 8727 (dated 1927) & 8822, 8823, 8824, 8827 (Mark 235).

Pictures are dated March 1928
 

 

Chassis outside housing
 

Two different views of the internal chassis
 

 

 
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Last revised: October 16, 2023

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