DEC RK07 drive interface specs wanted

Hmmm.. Certainly the heads can be replaced at home, but that assumes you have the right replacements. I think making heads is beyond a home workshop, but I would love to be proved wrong (and probably will be sometime -- _never_ underestimate what a hacker can do if he tries...) Anybody who believes that designs will port to a new FPGA without problems has almost certainly never tried to do this. I speak from bitter experience... That depends on thw tools you have and what you'd need to get. Certainly programming an FPGA for me would be _very_ expensive and time-consuming. I think I could make a floppy drive (not a hard drive...) -- apart from the heads themselves -- in less time, and certainly for less cost. I have bitter memories of compiles that took all night, and which had totally mangled my circuit so I then had to spend a day or so sorting out the mess. And then repeating when I needed to make some small change. No thanks... -tony