I have a 3000W GE T12 incandenscent lamp bulb from the early 1970s. It is from a Kliegl theater spot. Halogen bulbs are now used in place of these.
Apparently, some old high-wattage bulbs had uranium in them to buffer the current on firing. Does anybody know if this one does - it does seem to have a lot of funny "contraptions" in the wiring, and odd looking grids over the filaments.
It still works, btw. I use my dryer socket to run it! But I don't think I will ever run it again because the filament looks so nice in an attached/unbroken state, and the next time I use it could be the last.
thanks for any info,
David