Mike CT posted:Weaver offered the RS 12 and RSD 12 a couple of different times. Without the electro-couplers as pictured, the model probably has a QSI control board with added sound. Later issues did have TMCC and electro-couplers. This Pennsy model has TMCC and the couplers. If TMCC, there would also be switches on the bottom of the engine, that would indicate control. Snd (sound)/NoSnd (No Sound), and a second switch, Run/Program. Many of these Weaver models may have electronics upgraded from Conventional to Command Control. Thanks for posting the video. Mike CT.
Note the couplers.
Good point! I forgot about the early Weaver units with QSI sound. Then for sure without taking off the cab, the answer will be finding a program/run switch!
Lou N