This instrument is outwardly similar to BC 3030 but has no signalling arrangement. It is used in telephone installations connected to bell annunciators. An installation of this kind consists of an annunciator RP 130, a bell RA 510/4.5 or RA 610/4.5 and a battery. When calling, the button of the instrument is pressed, the corresponding indicator in the board being released at the same time as the bell rings. The conversation may then take place when the handset of the instrument mounted near the annunciator has been lifted. The same type of instrument is used for all instruments in the installation.
handset RE 1013 of black bakelite with capsule transmitter, 200 ohm, and cord RS 4253, length 1000 mm, press button for signalling, case of black bakelite.
height 145 mm, width of the back plate 60 mm; weight 0.635 kg.
Taken from the L. M. Ericsson Telephones and Signalling Material Catalogue No. 188 Supplement 5 (1938)
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