The production testing of condensers, specifically regarding the number of alternations of the alternating current.
| Identifier | ExFiles\Box 34\1\ Scan161 | |
| Date | 27th January 1920 | |
| R.R. 235a (607) (S.G. 756, 24-5-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2650 X. 2512. EFC. {E. Fowler Clarke - Electrical Engineer} By {R.W. Bailey - Chief Engineer} /3/H27.1.20. X.1627. PRODUCTION TESTING OF CONDENSERS X.252 Referring to your sheet on the above, sent to me under cover of EFc {E. Fowler Clarke - Electrical Engineer} 1/AT30.8.19, I would like to point out that in paragraph 2 we should not only define the Voltage of the alternating current, but the number of alternations. I am assuming that the number of alternations intended in Paragraph 2 is that on the Derby Mains, namely, 40. Apparently the amount of current taken will vary with the alternations. BY. {R.W. Bailey - Chief Engineer} | ||
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).