I believe someone mentioned that the 465/475/485 family used the same fan motor. This got me scared, so I pulled out my 465B Service Manual to compare. I finally found the fan and the motor is listed as Tek #290-0536-00, Mfg Code 90201 (Mallory Capacitor!) part #TDC106M025FL (465B SM, rev E, May 1980). I don't know how similar it is, but it has 13 pins arranged in a circle.
That referenced AntiqueRadios article called out Tek parts 670-7390-00 or 670-7390-01, completely different series. I wonder if that means the 2465 motors were custom made, as copies of the earlier motors, after Mallory declined to make more.
A question: What are the chances that any of these motor bearings could be oiled, before they got too worn. A stitch in time....
BTW, I don't recommend ordinary motor oil for applications like this. You don't really want detergent oil in something that doesn't have a pump and filter, and SAE 50 sounds WAY too heavy. Non-detergent or STM (Straight Mineral Oil) in SAE 20 or 30 are probably better choices.
