Re: Upgrading the Apple][ to //e

[Rob Steinmetz <rsteinmetz@-no-mindspring.com>]

Exegete wrote:
> Robert Steinmetz wrote:
>
> > I have my original Apple][ and for a long time when I used it every 
> > day I was able to keep it up with all of the current technology I 
> > needed. I eventually moved to a //c and a Laser 128.
> >
> >
> > I am wonder how close I can get i to compliance with a //e.
> >
> > I change the ROMs to the floating point ROMs and it became effectively 
> > a ][+
> >
> > I added a Videx 80 col card and a lowercase adapter, 80columns and 
> > lower case.
> >
> > I added a Titan 128k Card.
> >
> > I added a ZIP chip but there seem to be some issues with that. I cant 
> > get it to complete diagnostics.
> >
> > I have a 65c02 for the enhanced instruction set.
> >
> > What steps can I take to make this machine more compatible with the //e?
> >
> > The major missing elements AFAIK are the enhanced instruction set of 
> > the 65c02 with the enhanced ROMS and character generator chip.
> >
> > Is this a feasible project and if so does anyone want to help?
>
> Robert,
>
> If you have a real II, not a II+, I would urge you to keep it in 
> original condition. You have a collectors' item there. You can get a IIe 
> for just a few dollars, and some of your upgrades can be put into the 
> IIe to upgrade it (like you Zip chip - I need to remind myself that 
> Coveting is still a sin.)
>
> Roy


It is a real ][, not a ][+. I haven't done any thing to it which 
can't be undone easily. I did swap the ROMs from the Floating 
point card on to the main board, in order to add a language 
card, but I have the integer ROMS and could put them back. I'm 
mostly interested in this because it was the first computer I 
ever bought, and I'm sentimental about it.

I wonder if it's worth more than I paid for it new yet?