TELEPHONE No. 29

Wall mounted house telephone with handset, press button switch, four terminals and trembler bell (DC), all mounted on a wooden base.

Originally called the "Telephone, House, Wall, 3-Terminal" it was renamed later as the Telephone No. 29.

Fitted in pairs and used in lieu of a speaking tube between two rooms only.

In addition to the telephones, three 1.5v dry batteries and a "Coil Inductor, 3 terminal" are provided.

Uses a Telephone No. 30 as the handset.  The handset has a press button fitted which must be operated in order to power the transmitter when talking.

Found in the 1915 GPO rate Book.

Made obsolete in 1937.

Telephone G.B. Incomplete, House
1 x Hook for Micro-telephone Mounted.
1 x Bell, Trembler, House 2.5".
1 x Press Button.
1 x Telephone No. 27.

Telephone includes (1928):-
1 x Hook for Micro-telephone Mounted.
1 x Bell, Trembler.
1 x Press Button.
1 x Telephone No. 30.

Circuit Diagram - TL154 or TL230.

Circuit Diagram - N129.

Information on all House telephone systems