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).
Inquiry to A.C. Cossor Ltd. requesting a demonstration of a Cathode Ray Oscillograph for ignition coil testing.
| Identifier | ExFiles\Box 167\2\ img242 | |
| Date | 24th January 1940 | |
| Elec. Your Ref: 34/ER/DD. Rm{William Robotham - Chief Engineer}/RC.{R. Childs}1/BA. 24th. January, 1940. Messrs. A.C. Cossor Ltd. Instrument Dept. Highbury Grove, LONDON.N.5. Dear Sirs, With reference to yours of the 2nd.January, we are interested in your Cathode Ray Oscillograph, model 3339. We require an instrument to measure voltages and currents on both the primary and secondary of Ignition Coils, and wondered if it is possible for a suitable instrument to be demonstrated in our laboratory. Yours faithfully, for ROLLS-ROYCE LIMITED. | ||