On Feb 20, 2022, at 5:12 PM, Vincent Slyngstad via cctalk <cctalk at classiccmp.org> wrote: ?On 2/20/2022 4:34 PM, Noel Chiappa via cctalk wrote: I may be wrong, but from what I could tell these are bog standard 10 inch blowers of a sort used in all kinds of equipment. They can be had new from Mouser, etc. for $75-ish. (I used an OA254AP-11-1TB, as indicated below, but I suspect the 10 inch diameter and 500-600 CFM are all that's important. Maybe the noise rating, if you're fussy.) What I did was to order one of these: https://www.ebay.com/itm/313353225252 and kept the original mounting bolts, grill, etc. I did fabricate a new zip-cord over to the AC connector thingy, soldered on the fan end (like the original) with the crimp-on circular ends to go under the screws in the terminal strip. That eBay order did take a while to ship, but it when it arrived it went in right where the old one was and blows like the old one, but is nice and quiet. If it had been important to me to keep the original branding, etc., I'm sure new bearings could have been fitted instead. There is no branding consistency amongst my racks, though, and the old brands and models are all discontinued in favor of newer and higher efficiency, so I didn't feel that extra effort was necessary. Oh, and I think you need the -22- instead of the -11- if your power is closer to 220V than 110V. Vince