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).
Experimental record sheet for a Dynamo Output Controller.
| Identifier | ExFiles\Box 59\1\ Scan283 | |
| Date | 19th April 1926 | |
| X4008. ELECTRICAL EXPERIMENTAL RECORD SHEETS X.&No: -4008 Dynamo Output Controller E" (Brass winding cheeks) "E" resistance 15.6 ohms in about 90 turns of SWG Eureka See sheet for A Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles. 16-XII-26 | 9 G III | | Shunt pole tip S. | | | | 5-X-27 | | | Fitted. ?Speedo change. | 6845. | | 0 | 0 3-XII-27 | | | Appar'ly OK. -88 miles | 5723 | | 8790 | 8790 23-XII-27 | | | OK. | 7197 | 7650 | 474 | 10264 2-I-28 | | | Replaced by "E" (shole S) OK. Rptd (CFC) OK shade early in, shade cuts out | 7650 | | 0 | 0 | | | | 7975 | | 325 | 325 18.I.28 | Shop | | Repl'd by C. Shop for Ludrus. Resis 49 turns 30 SWG SN{Mr Sanderson} Eureka. 12 ft. 23.8 ohms. Fixed not adjustable. PH-AC-99 | | | | 31.I.28 | Lab | | | | | | 24-II-28 | 12 Ex | | For 10 miles (France) | 0 | | 0 | 0 III-28 | Shop | | For Green Comp conversion | | | | 29-III-28 | Lab | | Shunt 28 Cu & 24 Eu (Savy) See "Switch G". | | | | 19.4.26. | ||