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).
Different types of rectifiers for chassis batteries, recommending the B.T.H. Tungar rectifier.
Identifier | ExFiles\Box 32\5\ Scan004 | |
Date | 31th October 1922 | |
X1589 To R.{Sir Henry Royce} from EFC. c. to OJ. c. to PN.{Mr Northey} EFC1/T31.10.22. X.664. RE RECTIFIER FOR CHASSIS BATTERIES X.1589. Answering your R1/M27.10.22 I believe the most successful non-revolving rectifier is the B.T.H. Tungar rectifier, of which I send particulars herewith. I do not think that a mercury vapour rectifier is adaptable to small outputs, also as far as I know, not having actually used one, (except a home-made one), a chemical ectifier or Noden valve is inefficient, messy, and rather generally unsatisfactory. One would judge that if they gave any real degree of satisfaction that one would see them more in use, but actually I have seen very few. The Tungar rectifier of course is an application of a thermionic valve as you mention. EFC. | ||