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Re: 1977 original apple II restoration: ONE MORE THING...
swtownsend@hotmail.com wrote:
> Playing with an early Apple-II ? I have two motherboards that say
> Apple-II on them. They do NOT say II-plus. Are they really early
> Apple-II motherboards ? Anybody want them? swtownsend(at)hotmail.com
The only practical difference between the Apple II and Apple II+ is
what ROMs are installed on it. There were a dozen or so different
revisons of the motherboard with the oldest unable to do 6 color HiRES.
ROM socket Apple II Apple II+
F8 341-0004 341-0020
F0 341-0003 341-0015
E8 341-0002 341-0014
E0 341-0001 341-0013
D8 empty 341-0012
D0 341-0016 341-0011
341-0016 was optional (it is the Programmer's Aid #1).