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 determining ideal condenser capacity by creating a test series.
| Identifier | ExFiles\Box 35\6\ scan 062 | |
| Date | 16th August 1921 guessed | |
| RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No Customer's No. 6 compared with the RR standard of about .20 mf, although their voltages are mostly 6, with running currents very little more than the RR. This may account for their success with Tungsten contacts. To arrive at the best capacity for our purposes, a capacity curve is needed. This could be obtained by making up a series of six condensers, with capacities of .01, .02, .04, .08, .16, .32 mf. resp. With these, any capacity could be obtained up to .63 mf in steps of .01 mf. The maximum of .30 suggested in a previous note, not being sufficient Signed H.{Arthur M. Hanbury - Head Complaints} J.{Mr Johnson W.M.} Allen. This Sheet must be filed on completion of the work. | ||