Actually
that's later Macs. The earliest that do have 72 pin simms I
can think of is LC III w/ 8MB which I have learning against TV stand
to be used w/ BSD if I can not find 68882 rated for 25mhz FPU to use
68k-linux because I don't wish to buy apple's 7.1 for it.
But why exactly OS 7.1? After all, you may download 7.5 for free from
Apple,
as well as earlier versions. All save for 7.1.
There are *updates* to 7.5 (like 7.5.1, etc) that are freely
available from Apple's sites, but I've never seen 7.5 itself
freely available for download.
Care to share a link?
-dq