FIELD: manufacture of discharge lamps with alkali metal emitting dopes. SUBSTANCE: flat pinch is made on exhaust tube and electrode assembly pivot is installed in it. Metal solder portion is placed in exhaust tube on exhaust side in immediate proximity of pinch. Width and length of flat pinch, inner diameter of exhaust tube, mass and density of metal solder portion are interrelated by definite dependence. EFFECT: facilitated manufacture. 2 dwg
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