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 the calibration of a spark gap and the excessive erosion of its points.
| Identifier | ExFiles\Box 167\3\ img068 | |
| Date | 14th June 1937 | |
| 6110. Rm{William Robotham - Chief Engineer}/Wst.4/JH. 14th June, 1937. The British Insulated Cables Ltd., Helsby. For the attention of Mr.H.Higham. Dear Sirs, In reply to your letter of the 2nd. inst. ref. HH/FGB. We are now arranging to return to you under separate cover, the spark gap which you have sent to us for calibration. This has now been calibrated at 10,000 peak, but special care should be taken in re-checking the gap as if the points show signs of excessive errosion, the maintainence of the correct setting is of the utmost importance. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||