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).
Tungsten contacts for contact breakers oxidising and a suggestion to order replacements.
| Identifier | ExFiles\Box 35\5\ scan 004 | |
| Date | 7th February 1917 | |
| COPY 7/2/17. X.2894 - TUNGSTEN CONTACTS FOR CONTACT BREAKERS. Mr. Ellis says the Tungsten contacts oxidise. Ey. suggests ordering up 6 to each of E.12487/8 for high speed magneto contact breaker. L.P.S. Electrical Co., are at present fitting us two Watford Magneto Contact Breakers with these Contacts. EFC. | ||