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).
Reviewing the functionality and usability of a Radamac plug tester.
| Identifier | ExFiles\Box 50\2\ Scan012 | |
| Date | 6th January 1921 | |
| X 4294 2 copies To EFC. from Hs{Lord Ernest Hives - Chair}/TMW. Hs{Lord Ernest Hives - Chair}/TMW1/LG6.1.21. X.4294 RE. RADAMAC PLUG TESTER. We have tried the above device and find that it functions quite well, even going so far as to give one warning when a plug is likely to give out. It is, however, rather unwieldy and is only able to be used where the sparking plug is easily got at. Hs{Lord Ernest Hives - Chair}/TMW. [Signature] [Stamp]: RECEIVED E F C JAN 1922 | ||