Mountain Hardware cards

I’ll write more about this shortly, but I recently got a really nice and complete Apple II plus system setup, complete with a couple of Mountain Hardware cards and manuals. Almost all of this system was purchased at the end of November, 1979, so these cards are from that era. I’ll look at each card individually later, but for now since I’ve done the scans, here are the three manuals.

Mountain apple clock operating manual Mountain keyboard filter software manual Mountain romplus operating manual