ERICSSON
TELEPHONE No's N2155 & N2156

In this instrument the Bakelite cradle stand surmounts a case work which is entirely of black enamelled steel relieved by gold bands and transfers.

The case is slightly larger than the one above and therefore, as it accommodates a larger generator, the instrument is eminently suitable where a very powerful telephone is required.

It is fitted with the most modern type of micro-telephone which incorporates a very highly efficient "inset" transmitter and receiver which are readily detachable.

The telephone contained a Generator with 5-magnets, ringer of 2000ohms and a special feature is the anti-side-tone induction coil.

Micro-telephone N5853
Micro-telephone cord N4021
Transmitter "Inset" N7746
Mouthpiece N8633
Receiver N6815
Receiver earpiece N4443
Receiver diaphragm N4400
Generator N4710
Generator handle N15480
Ringer N7308A
Terminal block cord N4114

Overall dimensions 11 x 10 x 5.75  inches.

Weight 12.75 lb.

Note:  Lightning arresters are not fitted in the terminal blocks of the above telephones.

Taken from the Ericsson Telephone Catalogue, edition No. 26 Supplement 1932

N2155 was introduced circa 1932.

N2155B has a safety condenser and is approved for surface use in mine working.  Diagram 16817 which is dated 1935.

Click here for an article from the Ericsson Bulletin

N2156

N2156 was introduced circa 1937 and similar to the N2155.  The differences were the terminal block which had a reduced number of terminals and a modern bell ringer mechanism.

Also supplied to New Zealand.

Last revised: December 22, 2025