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
Transformer and Speed Regulator : Set 4548-1 | BrickLink
Electric, Train 12V Transformer for 220V - Type 3 : Part 7864 | BrickLink
Railway Express with Transformer and Speed Regulator : Set 4561-1 | BrickLink
LEGO IDEAS - The Polar Express
Lionel 2433080 - Legacy SD70ACE Diesel Engine "New York Central" #1066 – MrMuffin'sTrains