TELEPHONE No. 20
Wooden table set fitted with a DC trembler bell and calling key.
Also known as the Table Telephone, with Trembler Bell "A".
The Telephone No. 22 is similar except is has an upper gallery to make it more ornate.
Made by Ericsson as their model BC2050 which is shown to the right.
Thought to be introduced around 1896 and intended for use in hotels, offices and private systems only.
The GPO Stores Rate Book 1928 & 1933 advises that this telephone was used on the L.C.C. Fire alarm system and Salvage Corps circuits.
A working current of 25 milliamperes should be allowed for the Bell.
Early table telephones were connected to the internal wiring with a Strip, Flexible Cord Connection. Click here for more information.
This telephone was not available in the 1946 Rate Book.
The Handset was a Telephone No. 28.
Similar to the Telephone No. 26.
Circuit Diagram - N120.
Telephone includes (1933):-
Last revised: November 04, 2023