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).
Graph showing the capacity of ignition condensers versus temperature at different frequencies.
| Identifier | ExFiles\Box 165\5\ img094 | |
| Date | 18th May 1933 | |
| IGNITION CONDENSERS ALUMINIUM FOIL WOUND ON 3/16" SPINDLE (THEN WITHDRAWN) .25 CAPACITY .20 .15 100 150 200 DEGREES FAHRENHEIT 50~ 400~ 800~ 1600~ 2000~ THE TELEGRAPH CONDENSER Co. LTD. ACTON. LONDON. 18.5.38 18.5.33 | ||