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).
Instructions for checking condenser capacity and its ability to hold a static charge at 50°C.
| Identifier | ExFiles\Box 52\3\ Scan101 | |
| Date | 13th July 1923 | |
| "(10) The capacity of the condenser should now be checked at a temperature of 50°C, and should fall within the limits .45 to .575 mf. It should also be ascertained that at this temperature the condenser is just capable of holding a static charge for a time long enough to observe this on causing the condenser to discharge." EFC. {E. Fowler Clarke - Electrical Engineer} | ||