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).
Blueprint for a Ballast Resistance Wire, reference D.71224.
| Identifier | ExFiles\Box 168a\5\ img017 | |
| Date | 4th October 1926 | |
| Hs{Lord Ernest Hives - Chair} 1095 X6145 C. EFC. BY/RD9/AL.4.10.26. RECEIVED RE E.A.C. V11 - BALLAST RESISTANCE - SEC:8150. Please receive herewith a blueprint of D.71224 - Ballast Resistance Wire which represents EFC's proposal for this chassis. This does not involve any new work, as I understand several ballasts have already been made up, but is issued to enable this new wire to have a piece number and record kept. All other particulars are to L.O.P. D.70843. BY/RD. | ||