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).
Cost comparison of ballast resistors and various batteries, including alternatives under testing.
Identifier | ExFiles\Box 50\1\ Scan026 | |
Date | 1st November 1923 guessed | |
-2- Ballast resistance. (X.3716). Present works cost of production £1 - 7 - 7d. Battery. (X.607 X.4053. X.4288) Present quantity price of Exide 6 BXE 5 batteries £8 -10 - 0 Alternatives :- X.979. Tudor CLG.9 £7.17.6 X.3629. De Martis. £8.14.7 less 2%. ( - £8.11.1). X.4283. C.A.V. Willard. £6.12.8. These last three are going through bench tests, none available for expl. cars at present. Contd. | ||