ERICSSON TELEPHONE No. N1010A and N1010B

Automatic Table Telephone

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 2pF, induction coil and switch are the other interior fitments.

All terminals are enclosed.

Micro-telephone N5852
Micro-telephone cord N4021
"Inset" N7745
Mouthpiece N8633
Receiver N6815
Receiver earpiece N4443
Receiver diaphragm N4400
Terminal block cord N4106
Terminal block N3158
Condenser N3652A

Dimensions 6.5 x 9.25 x 5.75 inches
Weight 5.75lb

Introduced around 1935

Taken from the Ericsson Catalogue No. 26 - 1935 Supplement

Click here for an Ericsson Bulletin article on the above telephone

Click for more information on this telephone

Click here for the circuit diagram

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

Additional Information

Similar sets can be found without an induction coil.  These are wired to diagram N18835 and can be identified easily as the handset cord only has two wires connected.

The microphone and receiver are connected in series so the transmission would not be to the British Post Office standards.

This type of telephone is normally referred to as a 'cheapened set' and would most probably have been used on Private Automatic Exchanges.

The pictures below show a N1010B with no induction coil, as supplied to Telephone Rentals.

Introduced around 1934.

Telephone Rental model with no induction coil

Last revised: June 12, 2010