TELEPHONE No. 54
Originally called the "Telephone, House, Table, Intercommunication, Secret, 1 way" but was later renamed as the Telephone No. 54.

Telephone included (1928):-
1 x Cradle for Micro telephone.
1 x Switch, Selector.
1 x Bell, Trembler.
1 x Press button.
1 x Vibrator.
1 x Coil, Induction.
1 x Relay, cut-in.
1 x Rose, Wall.
1 x Telephone, No. 32.

Handset is a Telephone No. 32.

Circuit Diagrams - TL233 and N154.

Information on all House telephone systems
 

 
 
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Last revised: September 24, 2025

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