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 utility test experimenting with creating a non-inductive resistance.
| Identifier | ExFiles\Box 4\5\ 05-page115 | |
| Date | 26th January 1939 | |
| R.R.Form (1358) (SF 349 26-1-39) P&P 2305/12 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 88248 19 To Order No. Customer's No. 2 (cont'd) Re Utility Test. With primary short-circuited. wire-gap = '06". In order to obtain a non-inductive resistance, a pencil mark on paper was tried; but to convey any appreciable current a very heavy mark was required, the graphite then was rapidly dispersed on sending a current. Marks made with Lead and aluminium on sand-paper were similarly ineffective. Hence 6 volt coils were used (cont'd) Signed This Sheet must be filed on completion of the work. | ||