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).
Instructions for comparing a coil insulated with plain paper to the same coil filled with brown wax.
| Identifier | ExFiles\Box 165\5\ img106 | |
| Date | 13th July 1933 | |
| RR 236 (150 BKS.) (D9 461-8-12-24) MP 306975 x6113. (1) ROLLS-ROYCE LTD. INSTRUCTIONS. To: WST. Date: 13/7/33 Order No. Customer's No. Comparison between coil with plain paper & the same coil filled with brown wax. It will be seen from the results on the attached test sheet, that filling the coil with brown wax has a tendency to increase the output volts. & damping factor. Signed: A.F. Wundall This Sheet must be filed on completion of the work. | ||