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).
List of various dynamo output regulators.
| Identifier | ExFiles\Box 31\1\ Scan132 | |
| Date | 4th January 1922 | |
| X.1402 95291. 4.1.22 EFC. LIST OF DYNAMO OUTPUT REGULATORS 1 R.{Sir Henry Royce} Bosch (complete). 1 R.{Sir Henry Royce} Bosch (disassembled). 1 Westinghouse (complete) 1 Bijur 12 volt (open) 1 Bijur 6 volt complete. 1 Bijur 12 volt (complete-on 4-EX.) 1 Liberty. (complete). L.F. | ||