Discharge test graph for an R.R. Tudor I component.
| Identifier | WestWitteringFiles\G\June1921\ Scan94 | |
| Date | 19th May 1921 | |
| R.R. Tudor I. 19-5-21 Volts per div = .290 Amps per div = .248 Ohms in circuit = 1.170 No of hours discharge = 5.6 Amperes Hours | ||
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).