Unsuccessful attempt to source a suitable rectifying valve from two suppliers.
| Identifier | ExFiles\Box 41\2\ Scan086 | |
| Date | 18th June 1930 | |
| X3646 18.6.30. X.3646. RECTIFYING VALVE. As a result of our EFCl/AD2.5.30 Messrs. Edison Swan Electric Co. (incorporating The B.T.H. Co.) and Messrs. Philips Lamps Ltd. were both approached with a view to their supplying us with a valve more to our requirements.. Neither of these firms however, could offer anything that was at all suitable. EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).