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 British Insulated Cables Ltd. regarding coils and a drawing for spark gap details.
| Identifier | ExFiles\Box 167\3\ img038 | |
| Date | 29th April 1937 | |
| 6110 Wst/RG.{Mr Rowledge}7/JH. 29th April, 1937. The British Insulated Cables Ltd., Helsby. Dear Sirs, With reference to your letter of the 26th inst. ref.HH/FGB. we are sending the coils under separate cover. With regard to the spark gap; I am sending herewith a drawing of the details to which we work to. The distance between the points being adjusted so that sparking occurs at a peak voltage of 10,000. Fig.1. illustrated the correct arrangement. Will you please arrange to return the enclosed drawing when you have finished with them. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||