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Re: A2 Rev 0 Recreation Update #2
On Sep 27, 10:04 pm, Steven Hirsch <snhir...@gmail.com> wrote:
> What precisely is the difference between a Rev 0 board and its successors?
Rev 1 added the following (according to Jim Sather):
Color burst killer to remove color from text
Power up reset circuit
Blue and Orange Hires colors (1/2 pixel delay)
Fix to 20/24K RAM addressing.
Added 50Hz Eurapple jumpers
Color Ref and Video signals to slot 7 (needed for PAL encoder board in
Eurapple)
Single pin video connector
> How does one identify it?
All Apple II motherboards except Rev 0 have the part number on them.
Look under the 6502 for 820-0001-xx (or near F1 for the later RFI
boards 820-0044-xx).