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).
List of dynamos fitted to various chassis, detailing modifications and test status.
| Identifier | ExFiles\Box 51\1\ Scan266 | |
| Date | 11th October 1923 | |
| X-4383 EFC3/T11.10.23. X.4383 - DYNAMOS FITTED TO VARIOUS CHASSIS. Dynamo. Remarks. Chassis,etc. A.{Mr Adams} Old machine with unrevised main brush position,now fitted with bevel brushes. Awaiting 2GII. B. Heavier brush spring pressure. 3GII. C. Set to 12 ampere prod.test. 6EX. D.{John DeLooze - Company Secretary} Specially undercut commutator and double brushes. Lab. E.{Mr Elliott - Chief Engineer} Bench Experimental. F.{Mr Friese} No experiment fitted. 49-GB. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} " " 5GII. R3. Bevel brushes of EG2 Morganite. 7GII. X. Not tested by us. GI. 161. Set to 12 ampere prod. test. 1st.4GII unit. 288. Bench expl. brush tests. 438. Not tested by us. 79-AO. 470. " " " " 6GII. 562. Trailing edges of poles eased off. 604. Not tested by us. 11GII unit on 4GII. EFC. | ||