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).
Questioning if a non-inductive resistance across the dynamo field would stop sparking on the charging switch, and requesting an experimental observation.
| Identifier | WestWitteringFiles\T\2July1928-December1928\ Scan120 | |
| Date | 22th September 1928 | |
| EFC. FROM R.{Sir Henry Royce} ORIGINAL CHARGING SWITCH. R1/M22.9.28. / X 2730 Ought there to be a non-inductive resistance across the dynamo field to stop sparking on the switch with a view to avoiding burning of the contacts - i.e. will you make an experimental observation of the sparking of the switch when the charge is stopped at full dynamo load? This has been brought about by the green light scheme much more frequently than previously. R.{Sir Henry Royce} | ||