The revese is supposed to be true also, you can use a disk II drive with the newer disk controller buy moving the select line for the 2nd drive. If you can find a pin-out, it wold be relatively easy to isolate that signal. In fact, I have one of the newer style to Diks II adapters they used to sell for the IIc.
However, since the 5.25" disk controller cards are so numerous, it may be a lot easier to just ask for someone to send you a spare one to use with your drive(s).
Thanxk, Ed(The other resonce here seems to be a confusion of the 3.5" Unidisk drive info and the 5.25" Unidisk info.)
mario wrote:
Dear all, I am terribly sorry for being so curious and inquisitive, but I can't help it, at least for now. So, I am thinking of buying an apple Unidisk, but I do not have a corresponding Unidisk controller card. However, somehow I am hoping that I can get away with a soldering iron and a crippled 25 DSUB connector. Am I too optimistic? best to you all mario