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).
Graph plotting the open-circuit volt-speed characteristics for a Scintilla Dynamo, with and without a vibrator regulator.
| Identifier | WestWitteringFiles\K\June1923\ Scan58 | |
| Date | 12th June 1928 | |
| OPEN-CIRCUIT VOLT-SPEED CHARACTERISTICS OF SCINTILLA DYNAMO (No E887) Vibrator regulator controlled & uncontrolled FIELD AMPERES VOLTS DYNAMO R.P.M. Hot Cold O.C. volts (uncontrolled) Field current (uncontrolled) Speed Rising Speed Falling Hot [75°C] Open-circuit voltage (controlled) Cold [21°C] Field currents (controlled) | ||