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).
Set of instructions for testing electrical circuits and connections using switches and terminals.
| Identifier | ExFiles\Box 166\3\ img003 | |
| Date | 26th October 1932 guessed | |
| -2- (1) With S and T switched on, light is obtained from terminals Nos. 2 and 5. (2) With HS{Lord Ernest Hives - Chair} and T switched on, light is obtained from terminals Nos. 2, 4, and 5. (3) With I only switched on, light is obtained from terminal No.3 only. (4) With I and C switched on, light is obtained from terminals Nos. 1, 3 and R.{Sir Henry Royce} Confirm also that in moving slowly back from the position I and C to I, the circuit through No.1 is broken before that through R.{Sir Henry Royce} (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 7. Then connect battery negative to case. Connect lamp between terminal CL 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. | ||