Ralph wrote:
I'm looking for an Integer BASIC ROM set for an Apple ][. The Apple part numbers are: E0 (part # 341-0001) E8 (part #341-0002) F0 (part #341-0003) F8 (part #341-0003) - I might not need this... Getting 2716s with Integer BASIC is no problem - I need the 2513 parts.
There is a simple adapter that Sather describes in "Understanding the Apple II" at the end of chapter 6. It allows 2716s to be substituted for the 2513s.
Basically, I'm "downgrading" an Apple ][ plus into an Apple ][. I suspect I'll have to do a lot more to this machine, haven't take it apart yet, but the power-on-reset circuit isn't engaging, and keyboard reset doesn't help. The 555 chip at A13 appears to have red oxidation on the pins - ie actual rust, Iron Oxide, not the black oxidation you sometimes see on older chips.
That's interesting. I have several ][+'s, and all their chips are socketed. -michael NadaNet 3.1 for Apple II parallel computing! Home page: http://home.comcast.net/~mjmahon/ "The wastebasket is our most important design tool--and it's seriously underused."