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).
Specification sheet for Ferflex braided, twin-core electric cable.
| Identifier | ExFiles\Box 168b\2\ img110 | |
| Date | 14th September 1923 guessed | |
| ROLLS-ROYCE LIMITED. Specification Number 264. FERFLEX BRAIDED. MATERIAL. ELECTRIC CABLE. TYPE OF CORE. Twin. CORE SIZE. 2-23/36. OUTSIDE DIAMETER. .250 Maximum. CONDUCTOR. High Conductivity Tinned Copper Wire. DIELECTRIC. One layer of pure rubber and one layer of V.I.R. One core white V.I.R., the other red V.I.R. Total radial thickness of dielectric, .022. PROTECTIVE COVERING. Cores to be twisted together and wormed circular with cotton. Taped and protected overall with a Ferflex braid of 36-S.W.G., tinned copper wire. NOTE. Special for Repair Department use, and should not be used for new production. | ||