STC Model B 150 (1947). Standard Telephones and Cables. This beautiful walnut finish bakelite 1947 model B 150 mantel radio has been meticulously restored to bring back the unforgetable days of the classic valve radio. This AM radio works well and sounds great. Some components have been replaced with high quality parts. The plug lead has been replaced with a brown braided cotton 3 core cable and the chassis has been earthed to comply with electrical regulations. The original bakelite plug has been polished along with the 3 brass plug pins.