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).
Progress report on tests conducted on tungsten contact points.
| Identifier | WestWitteringFiles\O\2January1926-March1926\ Scan144 | |
| Date | 4th March 1926 | |
| Contd. -2- EFC2/T4.3.26. Tests on tungsten contact points are proceeding (with coils with standard windings) independently of the tests of coils with finer primaries, as it may be assumed that if these larger diameter tungsten points are reasonably satisfactory with coils taking the heavier current, they will be all the more satisfactory with these finer primary winding coils, if standardised. EFC. | ||