Abstract:
An electron discharge device of the planar electrode-type and having a bonded heater-cathode control electrode assembly, employs two garter springs which engage peripheral grooves in the assembly to support rigidly the assembly in the tube structure and at the same time provide low-inductance connections to the control and cathode electrodes. Springs for making contact to the heater of the assembly also force one of the garter springs into engagement with a stop to achieve desired positioning.
Abstract:
An electron discharge device which is easily manufactured and assembled consists of three concentric cylinders, unitary cathode grid and heater assembly, a garter spring arrangement for snapping the assembly into position with respect to one of these cylinders, and arrangements for making connections to the heater, the cathode, and the control grid as the assembly is snapped into position. In one version, the device is open to the atmosphere so that it can be used in space environment to take advantage of the extremely high vacuum conditions existing in such environment.