Specification for a 'Glowray' Ballast and the production test of an ignition coil ballast.
| Identifier | ExFiles\Box 164\5\ img348 | |
| Date | 20th May 1938 | |
| Ey. from Rm {William Robotham - Chief Engineer} /RC. {R. Childs} By {R.W. Bailey - Chief Engineer} /Rd. RHC {R. H. Coverley - Production Engineer} /Smd. {J. Smedley} 6017. Rm {William Robotham - Chief Engineer} /RC {R. Childs} 2/R.20.5.38. Re: Specification for "Glowray" Ballast. to LOP. DW.296. Herewith copy of specification No. ELC11/B. for the production test of the ignition coil ballast to DW.296. Rm {William Robotham - Chief Engineer} /RC. {R. Childs} | ||
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).