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 an experimental comparative test of a Watford E06d magneto.
| Identifier | ExFiles\Box 48\2\ Scan265 | |
| Date | 1st April 1925 | |
| X. 87916 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.Y.b. Order No WB {Mr Brazier / Mr Bell} 3 Customer's No. X4181d Experimental comparative test of latest Watford E06d magneto NO 73972 This test to our revised schedule has now been completed on the above magneto, this magneto being considered to be representative of the latest Watford magnetos for E.A.C. chassis. Attached please find results tabulated on the special form and the curves exhibiting the S. Circuit and O. {Mr Oldham} Circuit characteristics of the primary winding. Signed H.E.W. This Sheet must be filed on completion of the work. | ||