Thats a DEAL. The large motor is worth that. Large motor Hudsons are going for near $300.00 on ebay. Did the seller know it had the large motor? Nice score.
Thanks Tom. So are there 'large motor' units that still use the disc armature, or is the disc vs. drum armature an indicator of pulmor engine vs. the older 'smaller' engines? Thanks! And that GP9 looks beautiful!Looks like it was worth the wait.
The term large motor was used in reference to steam engines. Coincident with the addition of traction tires Gilbert also began using larger motors, the armature lamination stack is 24/32" rather than 18/32". Not all traction tire engines got the large motor in the first two years. Large motors are apparent from the underside of the cab. During later years of production the armature changed from a disc to a drum design. Gilbert referred to the larger armatures as "super armatures." The fields were also revised to work with the super armatures.
The diesel motors underwent similar revisions but they are rarely discussed because it requires an engine disassembly to see which parts are in the motor.
Most revisions after 1956 were not performance improvements but rather cost reductions.
Thanks Tom!All the steam engines of interest with large motors have disc type commutators. The redesign with a drum commutator was after the change to 5 digit numbering. Engines with this motor would also have two step reverse units making them, in my opinion, suitable for display purposes, not for routine operation. Many 5 digit engines with drum commutator motors are also small 1/2" designs. Another cost reduction that reduced performance and reliability.
Five digit Hudsons would be the 21129 and 21130. My 21130 runs ok because of the sliding pickup shoes but I am on borrowed time until the reverse unit fails. The 21130 costs more than a 326. The 21129 in excellent condition sells for over $1k. The LNOB example I looked at was over $1,500, I never felt I needed one that bad.
I purchased the New Haven cars as a set of three repaints a few weeks ago. The third had a goofy custom tail light installed. I am removing that and will put a knuckle coupler on it when those arrive, hopefully today. The PO cut the coupler portion off of the truck to accommodate the tail light. After pulling the shell, they were originally green. I think the PO was going for a Polar Express theme, which works just fine for the tree!Your passenger cars are 650's, what I referred to as New Haven cars. The prototypes were known as Osgood-Bradley style cars. The set would have included a 651 baggage car.