TELEPHONE No. 3
|Standard CBS No. 1
telephone with no magneto generator.
Wooden Local Battery telephone with sloping writing shelf.
The set shown to the right was made by Ericsson.
A later version was made, the Mark 238, which was oblong in shape (see pictures below).
This telephone was in the 1928 Rate book but not available in the 1946 Rate Book.
Fitted with a Transmitter No. 2 although earlier types had a Transmitter No. 6.
This telephone could also work on CBS No. 2 & 3 exchanges by the addition of a capacitor.
Telephone No. 11 was the magneto equivalent.
Telephone includes (1928):-
Frames, notice, No. 2, and Labels No. 53B, will not be maintained in the old type of these instruments.
Circuit diagram - N103.
Drawing No's 8830, 8831 & 8832.
Supplied by Ericsson, their Model N20141
GPO instructions state that this telephone should be fixed to
the wall with it's lower edge 36 inches from the floor.
Last revised: February 05, 2020