Museum

30- British L.M. Ericsson No.26

Table telephone set CBS No.1 - Central Battery Signalling System No.1. This system used telephones with a 250 ohm ringer connected to earth. Telephone had a local battery to power the microphone and that the central battery in the exchange supplied power for signalling purposes. This instrument are intended chiefly for short private lines between offices, for hotels, steamers, factories etc. On such lines this arrangement with the present low price of batteries is the most suitable. Handset is a Telephone No.28.