Circuit assembly for temperature-dependent cathode current...

Details Circuit assembly for temperature-dependent cathode current... Circuit assembly for temperature-dependent cathode current...

H - Electricity

01

J

330/88

H01J 23/34 (2006.01) H03F 1/30 (2006.01)

Patent

CA 1226909

ABSTRACT OF THE DISCLOSURE A circuit assembly for temperature-dependent cathod current tracking in traveling-wave tubes having control electrodes and cathodes with a predetermined cathode current, in combination with a power supply, includes a temperature-dependent network thermally coupled to a given point of the traveling-wave tube for sensing the actual temperature of the tube, and an elec- tronic control circuit in the power supply connected to the temperature-dependent network for keeping the predetermined cathode current substantially constant by varying the voltage at the control electrode of the tube.

450704

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