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).
Test house report on tungsten contact points AC and AR.
| Identifier | ExFiles\Box 35\6\ scan 117 | |
| Date | 22th February 1924 | |
| EFC. FC.21. Feb 22nd, 1924. TEST HOUSE REPORT ON TUNGSTEN POINTS AC AND AR. The report from Mr. Warwick on the above points is to the following effect:- No trouble has been experienced with these contact points. As regards attention, all contact points whether standard or tungsten, are inspected and cleaned every 2,000 miles as per Instruction Book. CAP. | ||