FIELD: triple-electrode guns for color picture tubes. SUBSTANCE: cathode has 85-95 mass percent of Au as main ingredient, 5-15 mass percent of Ce, La, or Pr as auxiliary ingredient, and set of tungsten conductors passed through pellet. EFFECT: increased current density and life expectancy; facilitated manufacture. 2 dwg
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Authors
Dates
2000-12-20—Published
1995-12-27—Filed