The outcome of an experimental study of grid current in currently produced low-power receiving tubes indicates that if the plate dissipation is kept below 75% of the manufacturers' ratings, the grid current is not primarily due to ionized gas, but to photoelectric emission from the grid under the action of soft x-rays produced at the plate. A simple empirical formula is given for predicting the grid current from the operating conditions. Data are given for 11 tube types.
No takes yet. Share an insight, caveat, or question.
E. Fairstein (1958) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: