Recommendations for AIM-65 power supply?

-----------Original Message: Date: Fri, 27 Feb 2009 01:04:49 -0500 From: Ethan Dicks <ethan.dicks at gmail.com> Subject: Re: Recommendations for AIM-65 power supply? On Fri, Feb 27, 2009 at 12:49 AM, Josh Dersch <derschjo at mail.msu.edu> wrote: I don't know where to get one now, but my AIM came packaged with a steel bottom, a plastic top, and a PSU that has "AIM65" in the part number and that provides +24V. It looks like many other 1970s open-frame switchers with a large 1/8" or 3/16" aluminum baseplate and one or two power transistors, but unlike the others, it has more than just +5, and +/-12V. So at one point, someone was making 3"x4"x2" PSUs just for the AIM-65. Unless you happened to run across some that someone has as a stash of spares, I don't know where you'd find that exact model now, but it does exist. -ethan ---------------Reply: Well, I do have a 'stash' of about 6 or so but unfortunately (for you) I also have a stash of AIM-65s. As a matter of fact I'm looking at several right now to see just how many are worth saving; I might end up with one or two without working printers, in which case I might have a spare supply. I'll keep you in mind, but meanwhile it shouldn't be a big problem finding 24V somewhere; the required current is nowhere near what the 8" drives used. As Dwight suggests, it oughta be fairly simple to adapt the +/-12V on a PC PS. FWIW, there were at least two suppliers: initially Condor Inc. supplied one (part no. AA524-AIM65), and later Rockwell also supplied a fancier one made by Lestronics (Part no. A65-004-03). The Condor 24V supply looks like just a half-wave diode, cap and Zener. mike