Alternative LEGO RC Train Engine - Power Functions – Green Gecko Workshop
LEGO Electric Train Motor Replacement 4.5V Comes In | Brick Owl - LEGO Marketplace
Unofficial LEGO Sets/Parts Collectors Guide - Among many LEGO Train collectors, the golden age was 1980-1990... the 12V electric train years. And probably the most popular was the 7740 Intercity Train (not