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).
Particulars and schematic diagram for a Remy 12 cylinder 6 volt coil.
| Identifier | ExFiles\Box 52\3\ Scan255 | |
| Date | 30th October 1917 | |
| 1. Mr. Clark. Reference E1/W151017. EFC {E. Fowler Clarke - Electrical Engineer} 3/T221017. PARTICULARS OF REMY 12 CYLINDER 6 VOLT COIL. Primary Winding. This consists of 2 layers .040" D.C.C. and enamelled wire 90 turns per layer. Resistance .2 ω Non Inductive Resistance. 180 turns 26 S.W.G. and .56 ω Secondary Winding This is made up in two sections to keep the potential difference low and each consists of 54 layers of .005" enamelled 240 turns per layer, 3 layers of .001" oiled paper between every layer. 25920 turns step up ratio 144 Handwritten text from diagram: Secondary Winding Ebonite collar Manilla paper two layers .0075" Empire cloth. Inner H.T. Terminal connection of secondary. Finishing end of secondary to earth. Dimensions: 1 31/32", 13/16", 2", 3/8", 1/8" | ||