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).
Routing of L.T. feed wires and the positioning of coils to prevent radio interference.
| Identifier | ExFiles\Box 4\1\ 01-page358 | |
| Date | 20th May 1935 | |
| -2- Ha/Wat.10/WA.{Mr Wallis}20.5.35. Cont'd.{John DeLooze - Company Secretary} (3) L.T. feed wire. The two wires leading from the ballast resistances to the coils should not be taken inside the same tube as the H.T wires as the interference on the radio set is made considerably worse due to the L.T cables having impulses induced in them by the H.T.cables. (4) Coil position. Although we have not proved by actual measurement as requested in E/JNR.{Charles L. Jenner}1/HP.4.5.35., that the coils in the raised up position are cooler we consider that they undoubtedly are cooler and in any case are considerably more accessible. We hope therefore that they will be permanently raised in the new position. Ha/Wat. | ||