From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Manufacturing origins and electrical specifications of a Delco heater.
| Identifier | ExFiles\Box 137\1\ scan0245 | |
| Date | 28th January 1937 | |
| 1158. S/W. (Rm{William Robotham - Chief Engineer}/Std.) STEADMAN Hn.{F. C. Honeyman - Retail orders}4/MK.28.1.37. (Dict.27.1.37). With reference to Rm{William Robotham - Chief Engineer}/Std.15/AP.26.1.37, the heater was obtained by us from Delco-Remy & Hyatt Ltd. and they call it the Delco heater. Apparently, the matrix is made by the Harrison Radiator Corporation and supplied by them to the Delco people, but the latter claim to make the other parts and to assemble the whole outfit. We are trying to collect together the details you want and will let you have them later on. In the meantime, we would explain that the heater is manufactured to suit a 6 volt equipment, but there is a resistance to convert it to 12 volts. The switch bulb is behind the resistance and its voltage, viz: 6, should accordingly be all right. Hn.{F. C. Honeyman - Retail orders}✓ | ||