4 ms·

I don't know much about transmission, but would a modified version of this work for PAL TVs? I guess you'd modify the frequency but what to?

• iso1631 6y ago
  PAL generally runs on an 8MHz channel, and encodes colour in an entirely different way (each alternate line is reversed, meaning that small errors cancel out - where in NTSC you had a "Tint" control to adjust to any errors).
  • ddingus 6y ago
    PAL also requires considerably more accurate and consistent color information. NTSC displays will usually take almost anything close and display it. See the Apple 2 video circuit for a great example of that.
    • iso1631 6y ago
      Hence "Never Twice the Same Colour"
      • ddingus 6y ago
        With high persistence phosphors, PAL is nice. The higher frequency color makes a notable difference. 50hz was often just a bit slow for me. PAL 60 is where it was truly at, IMHO. Both formats have nice abuse potential, and exploiting it on early computers, and later on, microcontrollers, is a lot of fun.