Wall telephone and sounder combined for use on telegraph
(Old Catalogue No. 855)
Framework polished walnut.
This instrument is intended for telegraphic as well as telephonic communication, the latter by means of the buzzer, and can be used for either single or metallic circuits. The buzzer is used for calling.
When a metallic circuit is used, the two sides of the line are connected to the terminals L1, L2, but when a single line circuit is used, the line is connected to the terminal L1, terminal J1 is connected by means of a "strap" to J and terminal L2 is not connected.
Height of Backboard: 260 mm.
In both the 1905, 1911 and 1912 Ericsson Telephone Catalogue
Last revised: May 21, 2022