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).
Wiring diagrams for various E.A.C. Dynamo configurations.
| Identifier | WestWitteringFiles\L\2Jan1924-March1924\ Scan75 | |
| Date | 18th December 1923 | |
| E.A.C. DYNAMO DIAGRAMS. Top Left Diagram: STANDARD DIRECT ROTATION DIRECT EXCITATION. Top Right Diagram: ARRG'D FOR DRIVING OTHER WAY REVERSED ROTATION DIRECT EXCITATION. (LIKE GOSHAWK) Center Top Annotation: SWITCHING DONE ON POSITIVE LEADS. Center Main Annotation: ALL VIEWED FROM COMMUTATOR END. Bottom Left Group: DIRECT DRIVEN DYNAMO APPLIED TO 40/50 LUCAS SYSTEM. DIRECT ROTATION. REVERSED EXCITATION. Center Bottom Annotation: SWITCHING DONE ON NEGATIVE LEADS. Bottom Right Group: BELT DRIVEN DYNAMO APPLIED TO 40/50 LUCAS SYSTEM. REVERSED ROTATION REVERSED EXCITATION. Stamp (faint, in center): ROLLS-ROYCE, LIMITED PRINT ROOM 12 MAY 1925 DERBY Diagram Labels: N, S, +, -, 7+, 7-, C Bottom Right Corner: E.F.C. 18/12/23 | ||