Low consumption electron gun for cathode ray tubes
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United States of America Patent
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-
Apr 25, 1989
Grant Date -
N/A
app pub date -
Dec 15, 1986
filing date -
Dec 17, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low consumption electron gun is provided for cathode ray tubes. The heating filament of the cathode includes a resistant wire and lugs for connection to an electric energy supply. The resistant wire is wound spirally. The active part of the heating filament is formed of at most two turns, each of which is formed by a multiplicity of elementary turns; the connecting lugs have a core made from a low electric resistance metal which short circuits the elementary turns of the resistant wire.
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