Programmable Vacuum Fluorescent Display (VFD)
An anonymous reader writes "There is a review of a programmable Vacuum Fluorescent Display (VFD). It is used to monitor computer related stats e.g. temperture, voltages, uptime etc.
The article can be found here.
Looks like an interesting toy!"
Pick up any HD44780 compatible LCD, and hook it up to your parallel port. There's a driver for linux that controls this using the same commands that Matrix Orbital uses. However, a 20x4 LCD will run less than $10.00 at many on-line parts houses. I use one for my digital jukebox project.
$123 direct from their site. Not worth it, IMO.
Trolls lurk everywhere. Mod them down.
Apparently, you understand neither technology.
CRT: Fluorescent material glows when struck by electrons from a cathode in a vacuum tube.
VFD: Fluorescent material glows when struck by electrons from a cathode in a vacuum tube.
The only difference is that the CRT electrons are steered across the surface of the display with coils. The VFD simply places cathodes near a corresponding phosphorescent element.
So...not quite as different as you believe.
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