C.B. Extension Telephone
This instrument is used, in conjunction with the intermediate telephone set N1320, for the extension station.
The case is of the same general design and the codes of the respective fitments are as given for the telephone above except, terminal block N3158 and cord N4108.
Overall dimensions 11 x 10 x 5.75 inches.
Weight 10 lb.
NOTE. When the above telephones are required to be fixed to a wall, a bracket can be supplied.
Introduced around 1936.
Taken from the Ericsson Telephone Catalogue, edition No. 26, 1932 Supplement
Click here for the Circuit Diagram
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