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 diagram for an electro-magnetic field resistance inserting switch unit for a chassis dynamo.
| Identifier | WestWitteringFiles\Q\December1926-January1927\ 21 | |
| Date | 9th December 1926 guessed | |
| TO DIS. BOX TERMINAL A TO HEAD LAMPS SERIES SHUNT RESISTANCE TO DYNAMO TERMINAL C. FROM DIS: BOX HEAD-LAMP TERMINAL. FROM DIS: BOX TERMINAL C. CONNECTIONS OF ELECTRO-MAGNETIC FIELD RESISTANCE INSERTING SWITCH UNIT FOR CHASSIS DYNAMO. | ||