The Calculation of Harmonic Production in Thermionic Valves with Resistive Loads

Formulas are obtained for the amplitudes of harmonic components and the direct-current change in the anode current of thermionic valves operating with resistive loads. These expressions for components up to the sixth harmonic are given in terms of points taken from the load line on the anode-voltage-anode-current characteristics at equally spaced intervals of grid voltage.