<< I have a Franklin Ace 1000, it used to drive my AlphaSyntauri synthesizer. I recently took it out of service because some of the keys failed to work (including the Return key. . .) >> The Franklin Ace 1000 is a clone of the Apple II+, so (and I realize that this is probably the last thing that you want to do to an old friend) it could be replaced with an Apple II+ and probably a IIe. Jay