Combined table handset telephone, introduced in 1937, for use in CB and Auto areas.

The telephone has a DC trembler bell ringer and only one bell gong.

There is provision in the case for three press buttons.

The telephone was used on extension plans.

Mark 1 - has a receiver, Inset No. 1L in the handset.
Mark 2 - has a receiver, Inset No. 2P in the handset.
Mark 2A - has a receiver, Inset No. 2P in the handset and switch bracket and plungers of an improved design.

British Ericsson provided the GPO with Telephone No. 326CB, their model No. N1366.

Circuit diagram N436.

Click here for the circuit diagram - Web users - CD users

Click here for Button labels  - Web users - CD users

History, Technical and General Information on 300 type telephones

How to wire your Telephone No. 326 to make it work on Plug and Socket

Collectors information

General fault finding on your phone

How to restore Bakelite

Dismantling the Handset

Dismantling your Telephone No. 326

Keys for use in 300 type Wall and Table Telephones

Lamp Fittings

Labels that fit in the sliding tray

Comparison chart of GPO 300 type telephones

The picture above shows the inside of a Telephone No. 326
Note: Only one bell gong and the bell ringer is a DC trembler mechanism
In place of the missing bell is an anti-sparking circuit for the bell contact breaker



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Last revised: February 09, 2018