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).
Examination report on faulty ignition coils returned by customers.
| Identifier | ExFiles\Box 69\1\ scan0264 | |
| Date | 4th December 1929 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-B-12-24) MP 306975 X8710. ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.C. Order No.: WD{Mr Wood/Mr Whitehead}97. Customer's No.: X 8710 4-12-1929 Examination of faulty coils returned from customers. We have unwound for examination in the lab, three standard ignition coils which have been returned from customers as faulty (see BY/RD2/DM{D. Munro} 30-11-29). In each case the fault was confirmed and diagnosed previous to unwinding as a short circuit on the secondary winding. The following is a report on the condition of each coil after unwinding. Coil NO. G-2-WX. Break down found at end of 4TH layer of secondary. Coil secondary badly wound with spaces and considerable ridges in the layers. Primary in good condition. Signed: (contd) This Sheet must be filed on completion of the work. | ||