.:madworm:.'s photos with the keyword: getter

VFD display - getter & filaments

VFD display - getter & filaments

.:madworm:.
02 Jul 2015 111
Ice Tube clock - VFD macro

Ice Tube clock - VFD macro

.:madworm:.
26 Sep 2009 127
Interference fringes of a thin film. I guess some of the getter material (e.g. Barium) deposited there.
Ice Tube clock - VFD macro

Ice Tube clock - VFD macro

.:madworm:.
26 Sep 2009 176
Getter material evaporated and deposited on the glass. In physics sometimes a so called "titanium sublimation pump (TSP)" is used for ultra high vacuum systems. Titanium has a high "sticking coefficient" and gas just sticks to it. There's also ion getter pumps being used for just holding the pressure.