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 variation of capacity with temperature for different types of paper condensers.
| Identifier | ExFiles\Box 52\3\ Scan194 | |
| Date | 8th August 1924 guessed | |
| VARIATION OF CAPACITY WITH TEMPERATURE OF PAPER CONDENSERS J CAPACITY (M.Fds.) 1335 CONDENSER MADE UP WITH UNTREATED WHITE PAPER AND THE WHOLE IMPREGNATED WITH COMMERCIAL PARAFFIN WAX 1577 CONDENSER MADE UP WITH UNTREATED WHITE PAPER AND THE WHOLE IMPREGNATED WITH PURE WAX. MELTING POINT:- 112°F THE POINT 'L' ON EACH CURVE INDICATES THE TEMPERATURE AT WHICH THE CONDENSER BEGINS OR CEASES TO HAVE AN APPRECIABLE LEAKAGE, JUDGED BY ITS CAPABILITY OF HOLDING OR NOT HOLDING AN APPRECIABLE STATIC CHARGE. No. 1335 No. 1577 TEMPERATURE (°C) | ||