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).
Technical note regarding the insulation and wiring for a green light magnet.
| Identifier | WestWitteringFiles\T\2July1928-December1928\ Scan090 | |
| Date | 11th September 1928 | |
| EFC. } FROM R.{Sir Henry Royce} & E ORIGINAL GREEN LIGHT MAGNET. X4040 The frame of this is naturally insulated so that it can receive current from terminal 7., and the other contact can take it to green lamp. The coils of this magnet can be entirely insulated from their cores, or its frame, so that one end can receive current from C., and the other one earthed. The insulated contacts shewn on 1. 2. & 3. - DES. Sch. 361. - are not necessary, and can be as shewn in our original LeC. 2567 - i.e. armature un-insulated. We agree with terminal 7. for the green lamp current. We agree with terminal C. for both green lamp magnet, and auto: charging switch fine wire coil. R.{Sir Henry Royce} | ||