TELEPHONE No. 392


Combined table microtelephone (with DC trembler bell) for use in CBS No's 1, 2, 3 and Magneto areas and on long lines in CB and Auto areas on extension plans.

Also used on Private Wires.

Bakelite cased telephone with provision for 3 buttons.

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.

Also found on diagram SA 4091.

 Circuit diagram N492.

Supplied to the BPO by Ericsson, their Model N8444.

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

Collectors information

General fault finding on your phone

How to restore Bakelite

Dismantling the Handset

Dismantling your Telephone No. 312

Keys for use in 300 type Wall and Table Telephones

Labels that fit in the sliding tray

Comparison chart of GPO 300 type telephones

 
 
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Last revised: October 16, 2012

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