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).
Continued discussion on standardizing Ferranti ammeters for 40/50 HP and 20/25 HP chassis.
| Identifier | WestWitteringFiles\U\May1930-July1930\ Scan117 | |
| Date | 4th July 1930 | |
| -2- sheet for Ferranti ammeters for both the 40/50 HP. and 20/25 HP. chassis has been circulated, with a view to standardising these instruments in parallel with the present standard instrument of Elliott manufacture. In regard to the Park Royal instruments which have been experimented upon, the Park Royal Co. are being informed of our decisions. EFC. | ||