I have an MTH PS1 Veranda Gas Turbine and would like to convert it to TMCC. The unit has 4 can motors and the ERR Cruise board only supports two motors. Is there a way with relays to control all four motors.
If you don't pull overly long trains, one Cruise Commander 4.1 can support 4 motors. I've been running MTH Sharks, F-3's and Centipedes as well as a pair of Atlas RS-1's for years with a single Cruise Commander wired to all 4 motors in parallel. I make sure that the aluminum heat sink on the Cruise Commander is securely screwed to the sheet metal chassis of the locomotive and I use heat sink grease on the joint. I run 10 to 12 car trains on grades as steep as 3.5%.