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Thread: Apple II colour

  1. #1
    Join Date
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    Default Apple II colour

    Hi

    Bit confused

    I know the Apple II displays colours on NTSC by 'magic' and that the European PAL Europlus can only display B&W without a PAL card.

    I also 'know' that to modify a PAL + board to NTSC its a matter of changing the crystal, opening pads 13,14,15 and closing pads 11 & 16.

    However, my machine (now its got its original MB back in) is happily showing colour even without these mods ?

    I am using a video to VGA converter to display the picture and colour is bleeding a bit.

    Not complaining but as I say, confused.
    Current fleet
    TRS80 Model 4 - BBC B - Tatung Einstein - PCW9512 - PET 3032 - C64 - ZX81 - Spectrum 48K - Amiga A500 - VAX 3100,3300,4000VLC & 4000 Model 96 - Apple II europlus - Apple iMAC G3. Sharp MZ-80K. - DEC Micro PDP 11/73 - IBM 5160 XT - Multibus 286/10.

  2. #2

    Default

    Is it a true PAL system, or an "International NTSC" system? That was Apple's hybrid video system which used NTSC color generation but ran at PAL's 50 Hz refresh rate.

    This web site talks about it: http://www.cvxmelody.net/Platinum_Ap...or_monitor.htm

  3. #3
    Join Date
    May 2018
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    Default

    Its not a IIe but a II europlus but I think your right. The box that converts the 50hz 'PAL' video to VGA standard seems to be picking up the method used to give colour to the NTSC signal and interpreting it. I suspect this because when I run the colour bar test, some are not right.

    Still, most programs look lurid anyway, so a transposed colour doesn't seem to matter
    Current fleet
    TRS80 Model 4 - BBC B - Tatung Einstein - PCW9512 - PET 3032 - C64 - ZX81 - Spectrum 48K - Amiga A500 - VAX 3100,3300,4000VLC & 4000 Model 96 - Apple II europlus - Apple iMAC G3. Sharp MZ-80K. - DEC Micro PDP 11/73 - IBM 5160 XT - Multibus 286/10.

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