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 to Mr. Minchin discussing various car electrical components like batteries, charging rates, and points.
| Identifier | ExFiles\Box 59\1\ Scan112 | |
| Date | 27th January 1927 | |
| X4088 EFC4/T. 27th January, 1927. Mr G.R.N.Minchin, 50, Grosvenor Gardens, London, S.W.1. Dear Mr. Minchin, I have your letter of the 26th inst. I think Mr. Day will get what he wants because he has chosen the battery himself from the catalogue. In the case of the reduced charging rate the idea was more particularly to see whether this would be more effective in town running, and if you are going to be at home for the rest of the winter, there is still time to get to know that. In regard to tungsten points, we do not think they are quite as good as platinum. Mr. Royce however is rather keen on getting them standardised if possibly even if they are not as good, because of their cheapness and the fact that we can for that reason provide more spares. We have two cars with the auto switch on - they are working quite nicely. There has been one slightly incorrect phenomenon which we are now curing by altering the connection, the exact nature of this you will see from the reports which we are sending you. We are sending you a complete set of reports to date, on the functioning on the bench and on the car, with the exception of the one to which you refer which is really a portion of a previous one EFC1/T4.12.26. If we reduce the charging rate of the dynamo any further, we soon get complaints of insufficient charge. I don't mean necessarily from customers, but our test people seem to think that it is not sufficient. If, or when we have an auto charge reducer, I do not then think | ||