DBJ 510, 511, 512, 520, 521, 522, 525, 526, 527, 540, 541, 542, 545, 546 and 547
Called the Ericofon, this telephone was launched by the L M Ericsson Company in 1954 as a convenient, all-in-one telephone.  It was designed by Ralph Lysell and Gosta Thames.

Most of the production took place in Karlskrona, Sweden and more than 2.5 million were produced between 1956 and 1962.

Sometimes nicknamed "The Cobra".

The casing consists of moulded ABS plastic parts glued together and sanded at the seam.

All these models have a dial.

It could be supplied in 18 colours.

Introduced into the USA in 1960.

Circuit diagram - 361177.

The telephone model numbers are made up in the following manner:-
The code number DBJ XXX YY ZZ AA is where XXX is the model number, YYY is the signalling type and cord, ZZ is the dial numbering and AA the body colour. Click here for a list of the codes and differences.

Dial fitted to the UK variant produced for the Post Office

Last revised: March 22, 2025