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).
Instruction sheet detailing tests for voltage loss in headlamp wiring on chassis 20EX.
| Identifier | ExFiles\Box 168b\2\ img219 | |
| Date | 26th February 1931 | |
| X. 6082. ROLLS-ROYCE LTD. INSTRUCTIONS. To: EPC Order No. AD.88. Customer's No. X 6082 Voltage lost in Head Lamp Wiring (27 BNADIZ, 2.31) We have made tests in accordance with the above on chassis 20EX. This however is fitted with a central lamp scheme with Lucas foot switch and the necessary extra wiring, and have check readings were, made on 14 Ex which has 60/35 headlamp bulbs and no central lamp scheme. The open-circuit battery EMF on 20 Ex was 12.4 volts. The potentials to earth as detailed in above memo were then found as follows - Signed (contd) This Sheet must be filed on completion of the work. | ||