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).
Specification table for various core sections and windings.
Identifier | ExFiles\Box 65\3\ scan0356 | |
Date | 16th April 1929 guessed | |
X7791. CORE Nᵒ Core Section | Primary Winding | Secondary winding | Standard Section 1.000 x .468 1 | Standard | 127 | 8,000 | A core section '960" x 385" 2 | " | 160 | " | B core section '906" x 353" 3 | A | 127 | " | Primary windings Nº 20 S.W.G. 4 | A | 160 | " | Secondary windings N 44 S.W.G. 5 | B | 127 | " 6 | B | 160 | " 7 | Standard | 127 | 10,000 8 | " | 160 | 9,200 9 | B. | 160 | 10,000 | ||