Parts list and instructions for an instrument board unit, including bulbs and a temporary die suggestion.
| Identifier | ExFiles\Box 168a\1\ img109 | |
| Date | 16th August 1938 guessed | |
| -2- 7 - Osram Flashlamp Flat Bulbs, Clear, fitted with M.E.S. Cap. 12 m {Mr Moon / Mr Moore} /m dia. 2.5 volts. 0.2 amps. K.4308 - Lock Nut. 7 off. K.4646 - Split Pin. 7 off. The remainder of the parts required to build up this unit, can be obtained from LOP. DW.191 - Instrument Board. This scheme provides separate 2½ volt lamps, each with its own resistance, and deletes the fixed resistance from the dimmer. With regard to DW.777 - Base, which is a moulding, we suggest that a temporary die be made in order to obtain the requisite number of experimental parts. This completes the instructions. BY / [signature] | ||
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).