Table telephone for loudspeaking conference telephone systems
When a ring signal is received from the master station the microtelephone should be lifted, which will establish communication between the two stations. Calls to the master station are carried out simply by lifting the micro-telephone of the side station. The corresponding indicator of the executive’s switchboard will then be actuated. If the button of the side station is pressed, the bell of the master station will ring.
DC bell RA 610/4.5, 40 ohm, microtelephone RE 1040 of black bakelite with removable capsule transmitter RC 4000/40, 40 ohm, and cord RS 5080, terminal block RK 80005, instrument cord RS 9507, press button for signalling, case of black bakelite.
height 118 mm, width 233 mm, depth 150 mm, weight 1.6 kg.
Taken from the L. M. Ericsson Telephones and Signalling Material Catalogue No. 188 (1934)
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