GPO Telephones - Bell Sets 25/26/31/56/59

Bell Sets 25/26/31/56/59

These were bell sets that could be used, either stand alone or attached to the base of a 232 type telephone or similar, to provide a complete telephone instrument, as Tele. 150s and Tele. 232s did not themselves have an integral telephone circuit or bell. For this reason, although mostly black, they were available in the full range of colours to complement a coloured instrument. All these bellsets appeared identical externally, with a contoured, moulded cover which looked stylish alone, but would dock firmly underneath a 232. They were all based upon the same baseplate but differed in the type of bell and whether this was alone or accompanied by a capacitor, and / or an induction coil and any other telephone circuit components and wiring.