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).
Suitability of a replacement rectifying valve and potential solutions to prevent filament distortion.
| Identifier | ExFiles\Box 41\2\ Scan064 | |
| Date | 11th October 1927 | |
| X3646 To Roy.{Sir Henry Royce} from EFC. EFC1/T11.10.27. RE RECTIFYING VALVE. With reference to the attached, we have just received the replacement valve. We do not propose to use this valve, however, until we receive the G.E.C. Works' report. In informing them of our intention in this respect, we should also like to enquire what possibility there is of the valve now sent standing up better than the previous one to the big tension which we apply between the plate and the filament. Alternatively, have they another valve which is more suitable to take on its plate the high pressure delivered from a usual type of tembler coil, that being the way in which the valve returned has been used, though in other respects we have conformed to their rating. It does not strike one as being a very difficult matter to produce one of these valves with perhaps a little extra tension on the filament in such a way that it would stand the static stress. There is no question whatever of overloading the valve in watts - it is purely a Question of static attraction, and the valve would be perfectly suitable for the purpose we have in hand if we could get over this distortion of the filament. EFC. GEC.letter 10.10.27 attached. | ||