Formulas for the Amplification Constant for Three-Element Tubes in which the Diameter of Grid Wires is Large Compared to the Spacing
- 1 December 1924
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 24 (6), 683-689
- https://doi.org/10.1103/physrev.24.683
Abstract
Previous formulas which have been developed for the amplification constant in plane parallel three element tubes, do not take full account of the diameter of the grid wire. In this paper after making a conformal transformation, from the plane to the plane , where and making an approximation which is sufficiently accurate for all diameters of grid wire up to 1/3 the spacing, formulas are derived which give results in good agreement with the values determined from two series of actual tubes for which the older formulas are greatly in error or fail entirely.
Keywords
This publication has 3 references indexed in Scilit:
- Calculation of the Constants of the Three-Electrode Thermionic Vacuum TubePhysical Review B, 1920
- Berechnung des Durchgriffs von VerstärkerröhrenElectrical Engineering, 1919
- Über die Wirkungsweise der VerstärkerröhrenAnnalen der Physik, 1919