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).
Circuit diagram for a post-war R. Bosch dynamo and regulator unit.
| Identifier | WestWitteringFiles\J\November1922\ Scan86 | |
| Date | 16th November 1922 guessed | |
| + - Dynamo Field Resistance Se sh Load POST WAR R.{Sir Henry Royce} BOSCH DYNAMO AND REGULATOR UNIT | ||