On the electric field in a multi-grid radio valve

The question of the extent to which field disturbances caused by the individual wires of a grid penetrate an adjacent grid is examined by considering inter-electrode capacitance relationships. By an experimental procedure, using an electrolytic tank, and also by computation, the magnitude and effect of these disturbances can be measured, and it is shown that the well-known ways of simplifying the problem of the multi-grid valve are justified in cases of greatest practical interest