SWITCHBOARDS, MULTIPHONE
Switchboard, Multiphone AD1316
Introduced during WW2, there is no information on this unit but it was used for air defence work.

Click here for apparatus made by the Post Office for the armed forces

 

 

Switchboard, Multiphone N1627
Introduced during WW2 this is a mahogany cased 10 line Multiphone Switchboard.

See EI Telephones, Stations E1102 for details

Drawings - 63489 and 63490.

Diagram - N1627.
Diagram - PBX Terminating - N1635.
Diagram - Working with amplifier - N1629.
Diagram - Working without an amplifier - N1628.

Components and keys - N1627.

 

Switchboard TL1806
Magneto signalling, Multiphone Switchboard for terminating 10 private wire circuits.  Introduced circa 1933.

Drawing - 60187.

Diagram - N1618.

 

Unit, Amplifying No. 23D
This is used when amplification is required.

See EI Telephones, Stations F1101 for details.

 

 

 
 
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Last revised: January 23, 2025

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