A Method for Testing and Rating Electron Tube Generators

Two new coefficients of the three-electrode tube are defined, which are significant in determining its behavior and merit as a generator of alternating currents in a highly periodic output circuit or antenna. These coefficients are based upon a simple theory of the operation of the tube as a generator and are adequate for a calculation of the power output in circuits with any type of coupling, provided certain circuital requirements are complied with which are consistent with the usual requirements of good design in radio-frequency circuits. A bridge method for measuring these coefficients is described, and experimental data upon a particular generating circuit are presented, illustrating their use in calculating the high-frequency power output.