FIELD: television. SUBSTANCE: updated color picture tube includes pump-out glass bulb having rectangular screen panel with two long sides and two short sides. Panel incorporates major axis parallel to two long sides and minor axis parallel to two short sides and two diagonals which extend between two opposite angles of panel. Panel has unit of shadow mask installed inside and supporting means located in panel angles. Supporting means include in each position lockpin attached to glass bulb and spring with aperture engaging lockpin spaced apart. Tube has lockpins arranged between diagonal and major axis. EFFECT: facilitated manufacture, improved design. 5 dwg
