Abstract: A cathode ray tube device which comprises an electromagnetic shielding casing, a cathode ray tube held in said casing, an elastic material provided between the casing and cathode ray tube in contact therewith, and a space or porous material formed in part of a region defined between the casing and elastic material, and wherein said space or porous material suppresses the axial shifting of the cathode ray tube resulting from the thermal expansion of the elastic material when it is highly heated.

Abstract: A cathode ray tube with a potted base is provided which comprises: a plurality of stem pins which extend through a stem mounted at an end of a neck and fixed to the stem; an insulating housing which is mounted on the stem and which is formed integrally with a base having holes for receiving the stem pins, most of the bottom of the housing comprising the base; terminals for connecting leads extending into the housing from the outside to the stem pins extending into the housing from below through the holes in the base; an insulating material which is filled in the housing and which fixes the stem pins, the leads and the terminals; and an insulating adhesive for adhering the stem to the bottom of the housing.