On Tuesday, October 19, 2010 at 11:55:12 PM UTC-7, Ewen wrote:
adric22 <[email protected]> wrote:
So this card provided color on a PAL system, was it compatible with existing software on the Apple II that used color? Also, did it have
the same color-bleeding issues that the NTSC versions had?
The non-American Apple II was not PAL in itself. It just came with a 240
volt supply, and had the timing slightly adjusted to suit. It still
output NTSC natively, and needed some form of modulator, such as the PAL card, to give colour output to PAL monitors. In my experience, it did
not work too well.
The non-American //c had a different power brick, and came with an
optional plug in PAL modulator.
It was only with the PAL //e, that we got a true PAL Apple II, as the motherboard we had was entirely different, with the AUX memory slot in a different place.
The IIgs reverted to an NTSC only computer, but as it had RGB output
that we could feed into a SCART control or a monitor, this did not
matter.
Cheers - Ewen
Apple did make an Apple II for the European market that generated PAL or Secam video. I bought a partly populated ( no dynamic RAM or ROMs) in 1982. I don't know how well it worked with PAL or Secam monitors. As-is with a monochrome NTSC monitor, the
video rolled both ways. Several people I knew tried to convert their boards to NTSC. One guy even sold me a nice big blueprint schematic. I duplicated the video/refresh circuit on a protoboard and experimented with it. I eventually got it to work
with an NTSC monitor, but never saw what color looked like. I don't know what the story was about these boards. They nay not have worked well with Euro monitors.
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