Telephone, House, Table, Direct Call, Intercommunication, Secret, 20 way.

The telephone on the right is the 10 way variant.  The 20 way just has 10 additional contacts on the front rotating switch.

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.

Made obsolete in 1947.

Circuit Diagram - TL 232.

Circuit Diagram - N162.


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Last revised: February 06, 2023