ELECTRONIC GUN AND METHOD FOR ASSEMBLING SAME, APPLICABLE IN PARTICULAR TO THE MANUFACTURE OF TRICHROMIC CATHODE RAY TUBES WITH ONLINE GUNS

摘要

THE INVENTION PROVIDES AN IMPROVED MOUNTING STRUCTURE AND AN ASSEMBLY METHOD FOR OBTAINING A UNIFORM CUT-OUT VOLTAGE, PRECISION ADJUSTED. THE CANON CONTAINS SEVERAL ELECTRICAL GRIDS G TO G OF WHICH THE FIRST G IS LOCATED CLOSEST TO A CATHODE K SUPPORTED BY A BASE 3. THIS BASE AND THE FIRST ELECTRODE GRID G ARE PRE-ASSEMBLED. THE SUB-ASSEMBLY THUS OBTAINED IS SUPPORTED BY A PART 13 WHICH IS ATTACHED TO GLASS STICKS 2 TOGETHER WITH THE OTHER G. G. G IS ADJUSTED WITH PRECISION DURING THE PRODUCTION OF THE SUB-ASSEMBLY. THE DISTANCE FROM BETWEEN THE FIRST G AND THE SECOND GRID-ELECTRODE G IS ADJUSTED WITH PRECISION TO THE ASSEMBLY OF THE SUB-ASSEMBLY ON ASSEMBLY 18 INCLUDING THE OTHER GRIDS AND THE RODS.