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).
Request to wind an experimental armature core for a 20/25 Tank Dynamo.
| Identifier | ExFiles\Box 62\3\ scan0419 | |
| Date | 15th March 1934 | |
| 86039 RHC{R. H. Coverley - Production Engineer}/HPS.{Horace Percy Smith - Experimental Factory Mgr} From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.2/MA.15.3.34. 20/25 TANK DYNAMO. Will you please arrange for the experimental armature core we have, to be wound with two turns per coil, two coils per slot of 15 S.W.G. D.C.C. "Superfine" wire. Hs{Lord Ernest Hives - Chair}/Wst. | ||