Some time ago, I acquired an Apple ][+ with a disk interface card and two drives. I just recently got the ][+ working after determining that one of the chips in the first 16K of RAM was bad. To do that, I had to pull a chip from my language card, so I currently only have 48K until my RAM arrives tomorrow.
After getting the computer up, I connected the drives to the interface card and put it in Slot #6. Turned it on and the drive just spins. When I use my //c to send a disk using ADTPro and try it in the ][+, the disk ends up being erased. I read a forum post that said that this is probably a bad 74ls125. I have ordered some from eBay, but are there other possible issues as well?
I know that I did not plug the cable in wrong, but I can't speak to what the previous owner did. Based on the corrosion that I found on some of the pins of the chips, I would say that it was not stored well. I jsut want to get it up as soon as possible as I am new to the old Apple computers. (I grew up with Commodores and only used Apples at school.)