Faulhaber 2224R motor 006S (6 volt) with 22/2 308:1 spur gearhead. The 6-stage gearhead has a cog with several broken teeth. I will try to replace the cog. Finding a complete replacement would be expensive or lucky.Repairing this motor isn't a high priority since the 633nm filter has degenerated requiring a longer oblique mirror which prevents the filter turret from turning.