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).
List of formulas related to primary, condenser, secondary, and contact breaker components.
| Identifier | ExFiles\Box 69\1\ scan0005 | |
| Date | 30th April 1924 guessed | |
| -5- Contd. PRIMARY, CONDENSER & SECONDARY. Approx. period of oscillatory current components in primary and secondary T"= 2π√((1-η)LK{L. King}) (secs). Radio wave length (metres). VT" Damping coefficient. u = (RL' + mR'L) / (2(1-η)LL') Decrement uT" Damping factor Maximum amplitude of primary current. oscillation (amperes). C' / √(1-η) Maximum amplitude of secondary current oscillation (amperes). (M/L') * (C' / √(1-η)) Comparative amplitude of secondary oscillation. (1/L') * √(LK{L. King}) CONTACT BREAKER, SECONDARY & CORE. Number of flux interlinkages at break. 10⁸ MC' Maximum initial value of arc or dying away component. MC' / L' Maximum quantity of electricity discharged per break (micro-coulombs). (arc component on indefinitely small 10⁶ * (MC' / R) gap). | ||