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).
Log detailing faults and test results for 20 HP dynamos and coils.
| Identifier | ExFiles\Box 70\3\ scan0029 | |
| Date | 8th October 1931 | |
| -2- SFT{Mr Swift}/EJB1/EH.8.10.31. GZ.85. 4.GX. Roughness. Bearing trouble. SJ.85.M. 93.UF. Quieten Brushes. IT.25. 105.SC. Only charges 3 amps at 50 M.P.H. UG.35. 65.HC. Solder Run. SH.15. 11.MC. Sings and Bearing Noise. 20. HP. Dynamos. 174. 62.H.4. Rewound. Outside departure from standard. 1532. GCK.60. Quieten Dynamo. 1248. GNK.48. Clean and Adjust H.8.S. GHJ.63. Charges 20 amps. cold. Hot O.K. 748. GH.57. Brush sticking. One reversed. 999. GDK.30. Converted to 57 segs. 7.HO. GDK.52. Converted to 57 segs. P.7.M. GXL.25. Brushes sticking. Re-skim comm. W.5.K. GXL.32. Overhaul. Quieten Brushes. Coils. D.51121. 1532. GCK.60. O.K. 5733. GPK.67. O.K. 5910. GCK.74. Misfires. 5955. GYK.75. Misfires. 5329. GH.8. Secondary shorted. 5571. 89.K.6. O.K. (rewind to D.72503) (Sent to Mr. Davies for further test). D.70982. H.6.U. GWL.20. Secondary shorted. P.9.M. GXL.25. Secondary shorted. X.2.E. GXL.41. Secondary shorted. L.2.O. GHJ.35. Misfires. B.9.Z. GXL.32. OIK. PK.95. 41.EF. Primary shorted. WF.75. 31.UF. Misfires. BY.45. 3.LF. Primary shorted. MQ.55.X. 57.TC. Misfires. K.4.R. GYL.81. Secondary shorted. Q.8.K. GRK.53. Secondary shorted. D.72503. T.3.O.X. 123.AU. O.K. F.4.C.X. GLR.36. O.K. Tested stock. U.3.M. GNS.49. Damaged due to accident. Coil O.K. | ||