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).
Page of instructions for testing an electrical lighting circuit.
| Identifier | ExFiles\Box 163\6\ img275 | |
| Date | 15th March 1933 guessed | |
| -2- (1) With S & T switched on, light is obtained from terminals 5 and R to R1. (2) With H S & T switched on, light is obtained from terminals Nos. 2,4,5, and R.{Sir Henry Royce} to R1. (3) With Summer charged only switched on, light is obtained from terminals 1,3 and R2. Confirm that in moving back to the "Off" position the circuits are broken in order 3, 1, and R2. (4) With Winter charge only switched on, light is obtained from terminals, 1, 3, and R to R1. (b) Connect battery positive to terminal N and loose lamp wire to case. Ascertain that no light is obtained except in the off position only. (c) Now remove battery positive from N and connect it to H or 7. Then connect battery negative to case. Connect lamp between terminal Gl{G. Linnett} and case and ascertain that it lights by operating the press button switch. Next, connect lamp terminals to inspection plug and ascertain that it is lighted by inserting the plug in its socket. Hs{Lord Ernest Hives - Chair}/Pgt. | ||