High-frequency generator.

摘要

In a high-frequency generator 1 comprising a multigrid electron tube 2, the control grid 3 and the screen grid 4 are substantially d.c. coupled. The tube 2 then oscillates on the internal parasitic capacitance between screen grid 4 and anode 5 without requiring an external feedback circuit. A reduction of the heat dissipation and a compact electron tube 2 are the result, high oscillation frequencies likewise being attainable. A high-frequency decoupling of the control grid 3, with an intermittent operation of the generator 1, results in a very limited heat dissipation, causing the generator 1 to be very compact.