Electric discharge tube, comprising a highly loaded anode

An electronic tube as claimed in claim [2, characterized in that] 5, wherein the inner anode member includes nickel-plated iron which is covered with the sintered nickel layer.

An electronic tube comprising a central cathode, a composite anode surrounding said cathode and being assembled of an outer anode member formed by two parts each having two connection flanges, a Y-shaped inner anode member having two wings directed against said cathode and a leg inserted between and attached to the opposite connection flanges of said outer anode member, said inner anode member being exposed to a higher thermal load than said outer anode member and, at a temperature of about 500 degrees centigrade, the contact surfaces of said connection flanges having a coefficient of thermal radiation of more than 60% of that of a black body.

An electronic tube comprising an anode assembled of an outer anode member and at least one inner anode member exposed to a higher thermal load than said outer anode member, said outer anode member being of iron covered with an aluminum layer, said inner anode member being covered with a sintered nickel layer and having surface portions placed against corresponding surface portions of said outer anode member and, at a temperature of about 500 degrees centigrade, said surface portions of the inner anode member having a coefficient of thermal radiation which is at least 60 percent of that of a black body.