Nick PooleVacuum tubes are gay now
InstantArcade@North What are the chances of actually being able to make one of these with the colors?
I remember with the VFD stuff at least, you can get a few different colors using fancy filters in front.
@instantarcade I think it's possible? Some of the colors might be difficult, especially all together. It might require individual grids over each color to get them at the same relative brightness. I don't know enough of the phosphor chemistry.
@North I remember the early 90s HiFi components with a single display but a filter over the top cut into segments, and being able to do white, blue, orange, and red at least.
rrmutt@North @instantarcade Can definitely do most colors with phosphors, like these "aerolux" neon bulbs. I think these are vintage and phosphors have improved a lot!
@rrmutt @instantarcade Yeah, these phosphors are super interesting because, at least as far as I understand, they're not fluorescing from cathodoluminescence (as in a VFD) but from the UV generated by the glow discharge. I think a rainbow flag aerolux would be relatively easy!
@North Yes, wonder if they boost the argon in the Penning mixture to get more UV?
PaulNickson 🕊️🎛️🎼@North @instantarcade All it is is colour bars but in landscape ..?
@PaulNickson @instantarcade Right. You mean like on CRTs? Those do operate on phosphorescence, for sure, but they have two advantages: 1)They only need 3 colors and 2)They have access to different phosphor chemistries because they work at very high potentials and, by extension,. higher activation energies.
@North @instantarcade Agreed but it was (is?) the PAL standard test card to check phase.
@PaulNickson @instantarcade Yeah, for sure. I just don't understand what it has to do with Vacuum Fluorescent Displays
@North @instantarcade Sorry. Now I get it; you’re referring to vacuum tubes specifically. D’oh!
@PaulNickson @instantarcade Hah, it's all good, no worries!
@North @PaulNickson Okay, now I'm thinking about gay micro CRTs :)