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).
Request for a more fire-proof micrometer spark gap for altitude testing and ignition coil voltage measurements.
| Identifier | ExFiles\Box 63\4\ scan0035 | |
| Date | 4th March 1936 | |
| 86154 To EJJ. Hs{Lord Ernest Hives - Chair}/Wst.2/JH.4.3.36. Micrometer Spark Gap for Altitude Testing. We require a Micrometer spark gap of the type we are now using in the Electrical Laboratory, for ignition coil measurements of voltage. This spark gap will have to be made more or less fire-proof. We shall be glad to supply further particulars of this spark gap when it is convenient to you. Hs{Lord Ernest Hives - Chair}/Wst. | ||