This one offers a Gilbert American Flyer #12B 250-watt transformer in excellent condition.  The piece has been re-corded and the cord is pliable.  The on/off switch works and the green light comes on when powered.  The circuit breaker works and resets properly with the button.  The red light did not come on when tripped.

Multimeter readings look good:

A Side:

Base/18v Fixed: 16.35v

Variable at 0: .4v

Variable full throttle: 16.8v

B Side:

Base/18v Fixed: 16.35v

Variable at 0: .27v

Variable full throttle: 17.08v

TCA #97-45581.  Thanks for looking and please see my other listings for quality American Flyer items.  Questions please let me know.  I'm always happy to combine multiple purchases to save on shipping.  If you are combining multiple lots, please wait for me to send you an invoice via eBay which will reflect combined shipping costs.  Payment appreciated within 3 days of auctions end.  Be assured that this will be packaged properly for shipment.  Internal reference #SRT2622.