Test results for various electrical coil configurations.
| Identifier | ExFiles\Box 37\1\ scan 086 | |
| Date | 24th January 1919 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 88249 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. Customer's No. 3 Re. Utility Test (contd) Two in series in the same way as the RR standard coil, so that resistances could be placed in both primaries. Secondary of one Remy coil across gap primary open max = .24" With primary short-circuited " = .08" 2 coils in series primaries open " = .36" Primaries short-circuited " = .18" Nothing across 9.5 mm Two Remy 12's in series (Primaries open) 9.15 mm One, with primary open 6.1 mm Two, primaries closed 4.6 mm One, primary closed 2.0 mm Signed H.J. Allen This Sheet must be filed on completion of the work. | ||
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).