Roger Holmes wrote:
On 19 Feb, 2008, at 18:00, cctalk-request at
classiccmp.org wrote:
From: Tim Riker <Tim at Rikers.org>
I'm not sure what a europlus version of the machine is though.
The euro means 110/240 volt switchable power supply. I don't think there
was any other change, though it was common to have a colour card (in
slot 7?) which took the NTSC signal, decoded it and re-coded into PAL. I
guess there was a corresponding SECAM card for France. As you probably
know, the plus mean floating point Basic.
That is odd -- years ago when I studied the video logic in the II+,
there were jumper options for PAL that changed the video timing.
Perhaps it wasn't good enough and thus the NTSC->PAL conversion boards,
but the cut & jump traces were certainly there.
I could be mistaken, but I think another feature added by the + was the
"color killer" feature -- a control bit that removed the color burst
signal so that you'd get true B&W video when you just want straight text.