Telephone analog call repeater, for connection to 10-12 Vac or 60 Vac electromechanical bell

The telephone call repeater device is an accessory that allows you to connect one or more bell ringtones, in order to spread the call ring in particularly noisy or large environments. In input to the device, the following can be connected: a telephone line or an input for the internal extension of PABX, or an intercommunicating device, both at 10-12V AC and at 6V AC. The device generates a call at 50Vac (at 50Hz) and it is possible to connect up to 5 UTD 2841/1 (in parallel) or UTD 2841/2 (in series) bells to it.