@santa fe posted:Where can i get the diode for the tiu if i need it mth?
Did you see this?
This is what I use when I replace those: 1500W 36V TVS at Digikey
JW&A Enhancement Products at Henning's Trains
Lionel Service StationERR Dealer
MTH Factory Authorized Service
North Penn O-Gaugers Modular RR Club