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).
Letter from Osram-Robertson Lamp Works regarding the supply of rectifying valves, with an internal note clarifying interest.
| Identifier | ExFiles\Box 41\2\ Scan009 | |
| Date | 9th October 1919 | |
| COPY. OSRAM-ROBERTSON LAMP WORKS LIMITED. BROOK GREEN, HAMMERSMITH, LONDON, W.6 X. 3646 CW/MNH/456. October 9th 1919. Messrs. Rolls-Royce Ltd., Nightingale Road, Derby. Dear Sirs, We are in receipt of your letter of the 7th October reference Wd{Mr Wood/Mr Whitehead}/W10/R7.10.19. At the present time we are manufacturing Receiving, Transmitting and Rectifying Valves of various capacities. If you will kindly give us some information, as to what use the valves are to be put, we shall be pleased to forward you particulars of the types we would suggest. Yours faithfully, OSRAM-ROBERTSON LAMP WORKS LTD. We are interested at the moment, more particularly in rectifying valves and are desirous of experimenting with this type for battery charging etc. If they would be good enough to let us have them, however, we would like particulars of valves of other types. EFC. | ||