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 a Bosch Trembler Ignition Coil GZ4.
| Identifier | ExFiles\Box 49\5\ Scan202 | |
| Date | 23th March 1921 | |
| R.R. 300 (120B) (SF 349 24-1-19) MP 200552 X.4281 88300 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 23 March 1921 To: EFC. {E. Fowler Clarke - Electrical Engineer} Order No: AA {D. Abbot Anderson} 52. Customer's No: 1 Re: X 4281 Bosch Trembler Ignition Coil GZ4. This consists of primary and secondary windings wrapped together in oiled silk and mounted on a Caminated iron sheet core. The coil ends are supported by iron plates in about six laminations which also improve the magnetic circuit. The whole is fitted into a black paper cylinder about 8 cms long by 6 cms dia. At one end of this is a brass casting in which is housed the condenser, and upon which is mounted the trembler. (Cont'd) Signed This Sheet must be filed on completion of the work. | ||