TELEPHONE No. 56
Telephone, House, Table, Direct Call, Intercommunication, Secret, 5 way.

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

Could be used in conjunction with the single way Telephone No. 37.

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 - N156.

Information on all House telephone systems


 
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: April 23, 2025

FM