the present invention provides an improvement in a color picture tube having a tension mask supported by a support frame mounted within said tube . the mask has a significantly lower coefficient of thermal expansion than the frame . the frame has two substantially parallel cantilevered members , each member has a distal edge to which the tension mask is attached . at least one of the distal edges has two sections separated by a gap therebetween . the two sections include an inner section and an outer section . the mask is glued to the inner section and is welded to the outer section .