Lines of Light: How Analog Television Works

> We hit a strange truth about analog monochrome television: the vertical resolution is strictly limited: it’s the number of lines you draw. But the horizontal resolution, the resolution within each line, is basically infinite; it’s a purely analog signal. The only thing that holds it back is how quickly the electronics in your television can keep up. No, it's strictly limited by the bandwidth of the television signal. You could have infinitely responsive circuitry but you'd still have horizontal resolution limited by the bandwidth of the video portion of the broadcast TV signal. About all you can say is that analog TV does not have pixels. Anyway, here's a video (part of a series) on how analog TV works: [VIDEO] Full playlist: [LINK]

Great video. Seeing what it looks like inside with the phosphor and the mask was so enlightening. I also recently watched the one by Technology Connections, which was quite good: [VIDEO] I feel like I have a much better basic understanding of CRTs now. They felt like utter magic before. Now it just feels a bit like magic. The only thing that still confuses me is how the electron gun itself actually works. I don't really get how electrons are being shot at all and why we can shoot them in a beam.

For this, I recommend the Technology Connections video [VIDEO] . He actually demonstrates how the beam is redirected by the electro-magnets wrapped around the base of the tube. It's very cool.

Alec Watson from Technology Connections did an entire series on this subject: (How Analog Color TV Works: The Beginnings) [LINK] Then the playlist on TV stuff: [VIDEO] Don't blame me for the rabbit hole :P