I suppose that by the time I locate all of the parts to build my own controller and then assemble them and test everything out, I may as well buy this: »gpibusb.com/GPIB-USB-Converter.aspx
. Amazingly, it includes Mac drivers (most of this type of stuff seems to be for Windows only).
I bought 2 of these power supplies (Model 6033A) from a surplus store the other day. Going through the initial checkout procedures in the Operating Manual, it seems that they are both at least partially alive. The fans did need lubrication (why did they use sleeve-bearing fans in what must have been expensive equipment when it was new?). Oh well, for the amount of use I will be giving them, the fans will probably last the rest of my life, so I won't concern myself about this.