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).
Page of oscillograms showing radio interference from a Buick 8 engine under various conditions.
| Identifier | ExFiles\Box 168b\1\ img177 | |
| Date | 3rd April 1939 guessed | |
| OSCILLOGRAMS TAKEN OF RADIO INTERFERENCE FROM BUICK 8 (Engine running at about 2000 rpm.) 1) Interference at television w/length. No suppressor fitted, but plug screen in place. 2) Interference at television w/length. As ①, but with plug screen off. 3) Interference at television w/length. Suppressor and plug screen fitted. 4) [Sensy. increased x6] Interference at 350 m.{Mr Moon / Mr Moore} Background only. Car not running. 5) Interference at 350 m (as ④.). Car engine running. Suppressor fitted. 6) Interference at 350 m.{Mr Moon / Mr Moore} No suppressor or plug screen fitted. | ||