The Design of Triode Harmonic Generators

EXISTING analytical methods for predetermining the anode and grid currents of a triode harmonic generator are examined. These methods are found to give large unpredictable errors which may be of the order of 25 per cent. A new analytical method is devised, based on a power series representation of the tube characteristics, whereby the anode current components can be forecast with a maximum error of less than 6 per cent for harmonic generation up to fifth order. This method is also applied to the prediction of grid currents and is found to be more accurate than previous analytical methods.