bachatero@lemmy.world to Mildly Interesting@lemmy.world · edit-21 year agoThis is what the insides of a high pressure sodium (HPS) light bulb look likelemmy.worldimagemessage-square3linkfedilinkarrow-up182arrow-down15
arrow-up177arrow-down1imageThis is what the insides of a high pressure sodium (HPS) light bulb look likelemmy.worldbachatero@lemmy.world to Mildly Interesting@lemmy.world · edit-21 year agomessage-square3linkfedilink
minus-squarelazylion_ca@lemmy.calinkfedilinkarrow-up2·1 year agoHow much pressure? Is the bulb pressurized or the smaller tube? Is it normal air or something specific like nitrogen?
minus-squareSteveTechlinkfedilinkEnglisharrow-up2·1 year agoI searched it up: It seems the smaller tube is pressurised, the larger bulb is under a vacuum. Some of the other diagrams also show a getter in the bulb, so it’s a proper vacuum tube level vacuum.
How much pressure? Is the bulb pressurized or the smaller tube? Is it normal air or something specific like nitrogen?
I searched it up:
It seems the smaller tube is pressurised, the larger bulb is under a vacuum. Some of the other diagrams also show a getter in the bulb, so it’s a proper vacuum tube level vacuum.