TELEPHONE No. 45
Originally called the "Telephone, House, Wall, Intercommunication, Secret, 20 way" it was later renamed as the Telephone No. 45.

Each telephone on the system required a Battery, Leclanche No. 1 CZ, 3 cell.

This telephone could be used in conjunction with the single way Telephone No. 37.

Telephone includes (1928):-
1 x Hook 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 Telephone No. 32.

Handset is a Telephone No. 32.

Made obsolete in 1947.

Circuit Diagrams - N145 and TL232.

Information on all House telephone systems

 
 
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Last revised: September 24, 2025

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