ERICSSON
TELEPHONE No. N1010, N1010A & N1010B
 

N1010
The casework, micro-telephone and terminal block are of moulded, black Bakelite which is easy to keep clean and does not become shabby through long usage.

The mounting of the dial harmonises with the instrument. The dial is placed at such an angle that the figures are not obscured by the finger plate.

The micro-telephone is fitted with a detachable receiver and an "inset" transmitter.

The ringer, 1000 ohms, is fitted on the inside of the base which is cut away to permit of greater audibility, also a condenser 2uF, induction coil and switch are the other interior fitments.

All terminals are enclosed.

Micro-telephone N5852
Micro-telephone cord N4021
Transmitter Inset N7745
Mouthpiece N8633
Receiver N6815
Receiver earpiece N4443
Receiver diaphragm N4400
Terminal block cord N4106
Terminal block N3158
Condenser N3652A
Coil Induction N3519 (N1010A)

Dimensions 6.5 x 9.25 x 5.75 inches
Weight 5.75lb

Taken from the Ericsson Catalogue No. 26 - 1935 Supplement

Introduced circa 1931.

Diagram N13502 is dated 1931.
Diagram N18835 is dated 1934 (N1010B).
Diagram N19995 is dated 1935.

N1010B
This variant has an  Electromagnetic receiver, which means it does not require an induction coil.  But this makes the phone polarity conscious.

This was a basic telephone for use mainly on PAX systems.

It looks like Ericsson also sold some of these, or at least some parts to competitors - see the TMC S19088.

Click here for more information on the N1010B

Click here on how to identity different models and circuit diagrams

Click here for an Ericsson Bulletin article on the above telephone

Click for more information and identification of Compact telephones - a number of companies made these!

How to convert all N1010 sets to work on the UK plug and socket system

The two pictures below are of a N1010 taken by the BPO in 1931
Probably a prototype

Pictures

Thanks to Chris Elliot for the use of the pictures
This is an N1010 dated 1935

The N1010 below is different to the normal N1010
Ericsson clones of the Gecophone made during WW2 sometimes used a base plate which was populated with a GEC early style ringer and an upright terminal board.  The base plate, was however, shaped like an Ericsson base plate (with the sides cut in).  These  components may have an Ericsson 'N' part number painted on them but they were almost certainly made in Coventry by GEC.  They also have an Ericsson diagram N19995 pasted to the capacitor, which was released in 1935.

The ringer mechanism, bell mounting and Paxolin terminal block look like GEC
The diagram is N19995

Identical to a GEC bas plate except that is has the Ericsson style cut outs on the edges

Last revised: December 14, 2024