Abstract:
A grid electrode for an electron tube with planar electrodes consists of a planar array of fine wires mounted on a support frame. The support frame has a circular outside rim and interconnected interior elements dividing the area inside the rim into three or more separated apertures. The interior elements include radial elements connected to non-radial elements, forming a mechanically rigid structure with good heat conduction to the outside rim which resists buckling out of its plane when differentially heated.
Abstract:
A GAUZE ELECTRODE FOR VIDICON ("PLUMBICON") HAVING A DIAMETER OF 15 MM. OR SMALLER. A MAXIMUM LIGHT TRANSMISSION OF THE GAUZE ELECTRODE IS OBTAINED BY FIRST ETCHING COPPER GAUZE WHICH IS MANUFACTURED BY ELECTRODEPOSITION TO A LIGHT TRANSMISSION OF 70% AND THEN SECURING IS BY DIFFUSION AT APPROXIMATELY 2/3 OF THE MELTING TEMPERATURE OF THE MATERIAL OF THE GAUZE BETWEEN TWO COPPER-NICKEL RINGS. THE WIDTH OF THE RINGS IS SMALLER THAN 15% OF THEIR ORIGINAL OUTSIDE DIMENSION.