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).
Table of electrical calculations for primary, condenser, and secondary components with associated formulas.
| Identifier | ExFiles\Box 52\3\ Scan366 | |
| Date | 11th September 1919 guessed | |
| -5- Contd. PRIMARY, CONDENSER & SECONDARY. Approx. period of oscillatory current components in primary and secondary (secs). T" = 2π√(1-η)LK {L. King} .0000743 Radio wave length (metres). vT" 22290 Damping coefficient. u = (RL'+R'L)/(2(1-η)LL') .1839 Decrement uT" .1366 Damping factor .872 Maximum amplitude of primary current oscillation (amperes). C'/√(1-η) 13.97 Maximum amplitude of secondary current oscillation (amperes). (M {Mr Moon / Mr Moore} /L') * (C'/√(1-η)) .0922 Comparative amplitude of secondary oscillation. 1/(L'√LK {L. King} ) .602x10^-6 CONTACT BREAKER, SECONDARY & CORE. Number of flux interlinkages at break. 10^8 MC' 180.8x10^6 Maximum initial value of arc or dying away component. MC'/L' .02815 Maximum quantity of electricity discharged per break (micro-coulombs). (arc component on indefinitely small gap). 10^6 MC'/R 441 | ||