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).
Instruction and test sheet for four coils, detailing various measurements and remarks.
| Identifier | ExFiles\Box 45\4\ Scan159 | |
| Date | 6th November 1918 | |
| ROLLS-ROYCE LIMITED. INSTRUCTIONS. To ___________ Order No PB86 (2) Customer's No. ________ (300 bks) (SF 152. 6-11-18.) MP 197880 19___ Table Title: Coils | Tests | 1 | 2 | 3 | 4 | Remarks | |---|---|---|---|---|---| | 1. | O.K. | O.K. | O.K. | O.K. | | | 2. | 11.3 ma. | 10.9 ma. | 11.7 ma. | 13.3 ma. | | | 3. | O.K. 6.5mm | O.K. 6.5mm | O.K. 6.5mm | O.K. 6.5mm | | | 4. | 1.42 Amps. | 1.34 Amps. | 1.33 Amps. | 1.43 Amps. | Nº4 coil weakened on this test | | 5. | 1.0 Amps 6.5mm | .98 Amps 6.5mm | .93 Amps 6.5mm | 1.02 Amps 5.5mm * | * Max gap only 5.5mm. | | 6. | 1.86 Amps 1.32 Volts | 1.79 Amps 1.20 Volts | 1.74 Amps 1.23 Volts | 1.75 Amps 1.23 Volts | | Signed: C.H.P. This Sheet must be filed on completion of the work. | ||