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... Someone else in the group gave the recipe for lightHehehe...I was unwise enough to uncritically quote this sinter/copper
bulb filaments, a ductile tungsten copper alloy which was then
purged of its copper by heating.
...
Leigh
Could it be that the Brits got their recipes mixed up?
Thoriated tungsten was used for vacuum tube cathodes. The thorium
lowered the work function of the metal, enhancing emission of
electrons.