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).
Log sheet of electrical test results detailing voltage and current measurements.
| Identifier | ExFiles\Box 50\1\ Scan192 | |
| Date | 7th November 1923 | |
| -2- Date. | Dist. box No. | (1) (a) | (b) | (c) | (3) Cold cutting in voltage. | Cold cutting in current (amperes). | Falling off voltage. | (4) Falling off shunt current. | Reverse series current (amps.). | Remarks. Stop. 25.8.22. | 11 | O.K. | O.K. | O.K. | 12.4 | .155 | 13.2 | .165 | 1.7 | .013" 25.8.22. | 12 | " | " | " | 12.6 | .120 | 12.7 | .120 | 1.4 | 16.6.23. | for R. {Sir Henry Royce} | " | " | " | 12.5 | .117 | 12.6 | .118 | .5 | 29.6.23. | For 6EX. | " | " | " | 12.55 | .12 | 13.0 | .121 | .8 | .018" 4.7.23. | 7GII | " | " | " | 12.7 | .142 | 12.8 | .150 | 1.5 | .012" 6.7.23. | 4GII | " | " | " | 12.8 | .18 | 12.6 | .178 | .35 | .017" 11.7.23. | 1GI | " | " | " | 12.6 | .143 | 13.1 | .150 | 1.1 | .019" 12.7.23. | 49GB 6GII | " | " | " | 12.4 | .153 | 12.8 | .158 | .85 | .015" 12.10.23. | 6GII | " | " | " | 12.4 | .138 | 12.4 | .138 | .9 | .012" 7.11.23. | 432. from 79-AO. | " | " | " | 12.2 | .12 | 11.7 | .110 | .6 | .010" | ||