Standard CBS No. 1
wall
telephone with no magneto generator.Standard CBS No. 1
wall
telephone with no magneto generator.
Local battery with wooden case.
The set shown to the right was made by Ericsson.
A later version was made, the Mk 238, which was oblong in shape.
Circuit diagram - Web users click here - CD users click here
Could also work on CBS No. 2 & 3 exchanges by the addition of a capacitor.
Telephone No. 11 was the magneto equivalent.
Supplied by Ericsson, their Model N20141
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| Later version - this picture has the receiver missing and the mouthpiece is wrong | Inside the telephone - the
silver cylindrical object is a modern style capacitor |
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