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).
Curve graph showing sparking voltage against gap for a 3-point gap with Mascot electrodes.
| Identifier | ExFiles\Box 4\5\ 05-page285 | |
| Date | 14th December 1920 | |
| SPARKING VOLTAGE - GAP CURVE USING A 3-POINT GAP WITH MASCOT ELECTRODES ORDINARY PLUG (LODGE) 2 POINTS TUNGSTEN MASCOT PLUG (R.R.Co) 8000 7000 6000 5000 4000 10 11 12 No. 226 / 14.12.20 | ||