Skylab
Reviewerus Prolificus
Quote:
The last bit of air is removed when the tube is fired up and metal placed on the getter (normally barium, I believe) reacts to any stray air in the tube and eliminates it.
Originally Posted by IPodPJ /img/forum/go_quote.gif Hey Donald, How do they suck the air out of a tube without breaking it? In a light bulb the oxygen is displaced with argon, I believe. But light bulbs aren't in a vacuum. |
The last bit of air is removed when the tube is fired up and metal placed on the getter (normally barium, I believe) reacts to any stray air in the tube and eliminates it.