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).
Specification list for various electrical equipment components and their associated design numbers.
| Identifier | ExFiles\Box 3\4\ 04-page238 | |
| Date | 17th March 1933 guessed | |
| -10- Section. Description. Design. ELECTRICAL EQUIPMENT. Instrument Board. Separate instruments with speedometer - Tachometer in small patch as 1st.Expl. car. N.Sch.3621. Starter Motor. 20/25 Standard with increased gear ratio & stronger limited torque spring. Main Switch. 20/25 & Peregrine II - Standard. Dynamo Distribution Board. Matchbox. First 15 cars Phantom Dynamo with 20/25 three rate. Charge units, with magneto switching deleted. Lec.3374 Ignition Distributor & Condenser. Standard 20/25, arranged for Battery ignition only, with lightened contact finger. Horn Coil. Standard 20/25. Ballast Resistance. Standard 20/25 shielded. Lec.3360 Starter Switch. Standard 40/50 HP. Dimmer Switch. As fitted to Pere.II. & 1st.Exp.Car. Battery & Box. As Peregrine II. Battery crossmember modified position. D.Sch.593 Lec.3387. Headlamps & Fittings. As 1st.Exp. Car. Lamp brackets - Ex.10034. Tachometer Drive. From end of dynamo. Lec.3376. Wiring. As Expl.cars (Flexible Conduits) Dashboard conduits.- Lec.3312. | ||