L. M.
ERICSSON | ||||||
TELEPHONE - WALL
AD 200 (Originally numbered the Telephone No. 330)
The telephone consists of: The intermediate station can talk to one or the other line depending on whether the switcher is placed on the left or right. A signal coming from either line rings the bell of the intermediate station, regardless of whether the changer is on the left or right. Both lines can signal and talk to each other if the intermediate station's microphone is on-hook. When two devices talk to each other, the third cannot listen. The intermediate station device can be used for 2 single lines as well as for 2 double lines or for a single and a double line.
Dimensions: Weight 9.8 kg. Taken from the L. M. Ericsson Telephones and Signalling Material Catalogue No. 122 (1930) - Swedish Translation Also found in the Ericsson Catalogue 7th Edition (1923) |
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Last revised: March 27, 2024FM2 |