sentences:  in 1933.Dodds worked in the Research Department of Metropolitan-Vickers Electrical Co. in Trafford Park, Manchester, developing high-power thermionic valves, used in the transmitter part of equipment for radar stations for defence (Chain Home system), thereby making a significant contribution to Britain's survival in World War II.He was appointed an Officer of the Order of the British Empire (OBE) in the 1944 Birthday Honours.